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957893404664 = 2371307872
BaseRepresentation
bin11011111000001101110…
…01010110011111111000
310101120111020102202110002
431330012321112133320
5111143231202422124
62012014500012132
7126130330411610
oct15740671263770
93346436382402
10957893404664
1133a270944679
12135790691048
136c437959481
1434510193a40
1519db4d630ae
hexdf06e567f8

957893404664 has 24 divisors (see below), whose sum is σ = 2052644418840. Its totient is φ = 410522605968.

The previous prime is 957893404661. The next prime is 957893404673. The reversal of 957893404664 is 466404398759.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 957893404664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957893404661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7258679 + ... + 7389465.

It is an arithmetic number, because the mean of its divisors is an integer number (85526850785).

Almost surely, 2957893404664 is an apocalyptic number.

It is an amenable number.

957893404664 is an abundant number, since it is smaller than the sum of its proper divisors (1094751014176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

957893404664 is an frugal number, since it uses more digits than its factorization.

957893404664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261587 (or 130796 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 65.

The spelling of 957893404664 in words is "nine hundred fifty-seven billion, eight hundred ninety-three million, four hundred four thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 130787 261574 523148 915509 1046296 1831018 3662036 7324072 17105239369 34210478738 68420957476 119736675583 136841914952 239473351166 478946702332 957893404664