64395394094885 has 16 divisors (see below), whose sum is σ = 88314064995456. Its totient is φ = 44156650832448.

The previous prime is 64395394094861. The next prime is 64395394094917. The reversal of 64395394094885 is 58849049359346.

It is not a de Polignac number, because 64395394094885 - 2³⁰ = 64394320353061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4492739 + ... + 12205551.

It is an arithmetic number, because the mean of its divisors is an integer number (5519629062216).

Almost surely, 2^{64395394094885} is an apocalyptic number.

It is an amenable number.

64395394094885 is a deficient number, since it is larger than the sum of its proper divisors (23918670900571).

64395394094885 is a wasteful number, since it uses less digits than its factorization.

64395394094885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7951372.

The product of its (nonzero) digits is 4031078400, while the sum is 77.

The spelling of 64395394094885 in words is "sixty-four trillion, three hundred ninety-five billion, three hundred ninety-four million, ninety-four thousand, eight hundred eighty-five".