64757326429 has 2 divisors, whose sum is σ = 64757326430. Its totient is φ = 64757326428.

The previous prime is 64757326363. The next prime is 64757326433. The reversal of 64757326429 is 92462375746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47479538404 + 17277788025 = 217898^2 + 131445^2 .

It is a cyclic number.

It is not a de Polignac number, because 64757326429 - 2²⁹ = 64220455517 is a prime.

It is a super-2 number, since 2×64757326429² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64757326429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64757326489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32378663214 + 32378663215.

It is an arithmetic number, because the mean of its divisors is an integer number (32378663215).

Almost surely, 2^64757326429 is an apocalyptic number.

It is an amenable number.

64757326429 is a deficient number, since it is larger than the sum of its proper divisors (1).

64757326429 is an equidigital number, since it uses as much as digits as its factorization.

64757326429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 55.

The spelling of 64757326429 in words is "sixty-four billion, seven hundred fifty-seven million, three hundred twenty-six thousand, four hundred twenty-nine".