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25769803764 = 2232147483647
BaseRepresentation
bin10111111111111111…
…111111111111110100
32110111221102200001110
4113333333333333310
5410234032210024
615501040155020
71601412501135
oct277777777764
973457380043
1025769803764
11aa24422a91
124bb2308a70
132578b75cc3
1413666d1c8c
15a0c582629
hex5fffffff4

25769803764 has 12 divisors (see below), whose sum is σ = 60129542144. Its totient is φ = 8589934584.

The previous prime is 25769803751. The next prime is 25769803799. The reversal of 25769803764 is 46730896752.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073741812 + ... + 1073741835.

Almost surely, 225769803764 is an apocalyptic number.

It is an amenable number.

25769803764 is an abundant number, since it is smaller than the sum of its proper divisors (34359738380).

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

25769803764 is a wasteful number, since it uses less digits than its factorization.

25769803764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147483654 (or 2147483652 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 25769803764 in words is "twenty-five billion, seven hundred sixty-nine million, eight hundred three thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 2147483647 4294967294 6442450941 8589934588 12884901882 25769803764