64057236797 has 4 divisors (see below), whose sum is σ = 64058133756. Its totient is φ = 64056339840.

The previous prime is 64057236781. The next prime is 64057236799. The reversal of 64057236797 is 79763275046.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53956785796 + 10100451001 = 232286^2 + 100501^2 .

It is a cyclic number.

It is not a de Polignac number, because 64057236797 - 2⁴ = 64057236781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64057236799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331118 + ... + 487599.

It is an arithmetic number, because the mean of its divisors is an integer number (16014533439).

Almost surely, 2^64057236797 is an apocalyptic number.

It is an amenable number.

64057236797 is a deficient number, since it is larger than the sum of its proper divisors (896959).

64057236797 is an equidigital number, since it uses as much as digits as its factorization.

64057236797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896958.

The product of its (nonzero) digits is 13335840, while the sum is 56.

The spelling of 64057236797 in words is "sixty-four billion, fifty-seven million, two hundred thirty-six thousand, seven hundred ninety-seven".