64487416344624 has 240 divisors, whose sum is σ = 222824041806912. Its totient is φ = 16954017196032.

The previous prime is 64487416344581. The next prime is 64487416344641. The reversal of 64487416344624 is 42644361478446.

It is a happy number.

64487416344624 is a `hidden beast` number, since 6 + 4 + 4 + 8 + 7 + 4 + 163 + 4 + 462 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3608179 + ... + 11916114.

Almost surely, 2^{64487416344624} is an apocalyptic number.

It is an amenable number.

64487416344624 is an abundant number, since it is smaller than the sum of its proper divisors (158336625462288).

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

64487416344624 is a wasteful number, since it uses less digits than its factorization.

64487416344624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15524644 (or 15524635 counting only the distinct ones).

The product of its digits is 297271296, while the sum is 63.

The spelling of 64487416344624 in words is "sixty-four trillion, four hundred eighty-seven billion, four hundred sixteen million, three hundred forty-four thousand, six hundred twenty-four".