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64137888241 = 782711079269
BaseRepresentation
bin111011101110111010…
…101000000111110001
320010112212202022022021
4323232322220013301
52022323244410431
645244201311441
74430253024550
oct735672500761
9203485668267
1064137888241
1125223190809
121051b795581
136081ac997b
14316625bd97
151a05b63b11
hexeeeea81f1

64137888241 has 8 divisors (see below), whose sum is σ = 73389084480. Its totient is φ = 54908852208.

The previous prime is 64137888229. The next prime is 64137888301. The reversal of 64137888241 is 14288873146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64137888241 - 211 = 64137886193 is a prime.

It is a super-2 number, since 2×641378882412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64137888211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5533846 + ... + 5545423.

It is an arithmetic number, because the mean of its divisors is an integer number (9173635560).

Almost surely, 264137888241 is an apocalyptic number.

It is an amenable number.

64137888241 is a deficient number, since it is larger than the sum of its proper divisors (9251196239).

64137888241 is a wasteful number, since it uses less digits than its factorization.

64137888241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11080103.

The product of its digits is 2064384, while the sum is 52.

The spelling of 64137888241 in words is "sixty-four billion, one hundred thirty-seven million, eight hundred eighty-eight thousand, two hundred forty-one".

Divisors: 1 7 827 5789 11079269 77554883 9162555463 64137888241