64404704107 has 4 divisors (see below), whose sum is σ = 64407954456. Its totient is φ = 64401453760.

The previous prime is 64404704093. The next prime is 64404704113. The reversal of 64404704107 is 70140740446.

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

It is a cyclic number.

It is not a de Polignac number, because 64404704107 - 2²³ = 64396315499 is a prime.

It is a super-2 number, since 2×64404704107² (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 (68404704107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595269 + ... + 1635142.

It is an arithmetic number, because the mean of its divisors is an integer number (16101988614).

Almost surely, 2^64404704107 is an apocalyptic number.

64404704107 is a deficient number, since it is larger than the sum of its proper divisors (3250349).

64404704107 is a wasteful number, since it uses less digits than its factorization.

64404704107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250348.

The product of its (nonzero) digits is 75264, while the sum is 37.

The spelling of 64404704107 in words is "sixty-four billion, four hundred four million, seven hundred four thousand, one hundred seven".