64907631751 has 2 divisors, whose sum is σ = 64907631752. Its totient is φ = 64907631750.

The previous prime is 64907631707. The next prime is 64907631809. The reversal of 64907631751 is 15713670946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64907631751 - 2³³ = 56317697159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64907631695 and 64907631704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64907634751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32453815875 + 32453815876.

It is an arithmetic number, because the mean of its divisors is an integer number (32453815876).

Almost surely, 2^64907631751 is an apocalyptic number.

64907631751 is a deficient number, since it is larger than the sum of its proper divisors (1).

64907631751 is an equidigital number, since it uses as much as digits as its factorization.

64907631751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 64907631751 in words is "sixty-four billion, nine hundred seven million, six hundred thirty-one thousand, seven hundred fifty-one".