64974053424 has 80 divisors (see below), whose sum is σ = 191922144768. Its totient is φ = 18554919936.

The previous prime is 64974053401. The next prime is 64974053447. The reversal of 64974053424 is 42435047946.

It is an interprime number because it is at equal distance from previous prime (64974053401) and next prime (64974053447).

It is a super-2 number, since 2×64974053424² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 654904 + ... + 747560.

Almost surely, 2^64974053424 is an apocalyptic number.

It is an amenable number.

64974053424 is an abundant number, since it is smaller than the sum of its proper divisors (126948091344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64974053424 is a wasteful number, since it uses less digits than its factorization.

64974053424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94762 (or 94756 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 64974053424 in words is "sixty-four billion, nine hundred seventy-four million, fifty-three thousand, four hundred twenty-four".