64472613732650 has 96 divisors (see below), whose sum is σ = 123945525157248. Its totient is φ = 24937435577600.

The previous prime is 64472613732643. The next prime is 64472613732763. The reversal of 64472613732650 is 5623731627446.

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, 556301609 + ... + 556417491.

It is an arithmetic number, because the mean of its divisors is an integer number (1291099220388).

Almost surely, 2^{64472613732650} is an apocalyptic number.

64472613732650 is a deficient number, since it is larger than the sum of its proper divisors (59472911424598).

64472613732650 is a wasteful number, since it uses less digits than its factorization.

64472613732650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118976 (or 118971 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 56.

The spelling of 64472613732650 in words is "sixty-four trillion, four hundred seventy-two billion, six hundred thirteen million, seven hundred thirty-two thousand, six hundred fifty".