64621727023376 has 20 divisors (see below), whose sum is σ = 125582857737744. Its totient is φ = 32213247607200.

The previous prime is 64621727023297. The next prime is 64621727023379. The reversal of 64621727023376 is 67332072712646.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64621727023379) 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, 6100988570 + ... + 6100999161.

Almost surely, 2^{64621727023376} is an apocalyptic number.

It is an amenable number.

64621727023376 is a deficient number, since it is larger than the sum of its proper divisors (60961130714368).

64621727023376 is a wasteful number, since it uses less digits than its factorization.

64621727023376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201988070 (or 12201988064 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 64621727023376 in words is "sixty-four trillion, six hundred twenty-one billion, seven hundred twenty-seven million, twenty-three thousand, three hundred seventy-six".