64474515430 has 16 divisors (see below), whose sum is σ = 124981368624. Its totient is φ = 23805974880.

The previous prime is 64474515403. The next prime is 64474515451. The reversal of 64474515430 is 3451547446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247978776 + ... + 247979035.

It is an arithmetic number, because the mean of its divisors is an integer number (7811335539).

Almost surely, 2^64474515430 is an apocalyptic number.

64474515430 is a deficient number, since it is larger than the sum of its proper divisors (60506853194).

64474515430 is a wasteful number, since it uses less digits than its factorization.

64474515430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495957831.

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 64474515430 in words is "sixty-four billion, four hundred seventy-four million, five hundred fifteen thousand, four hundred thirty".