73664824920 has 64 divisors (see below), whose sum is σ = 221854468320. Its totient is φ = 19567509504.

The previous prime is 73664824897. The next prime is 73664824957. The reversal of 73664824920 is 2942846637.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1163467 + ... + 1225146.

Almost surely, 2^73664824920 is an apocalyptic number.

It is an amenable number.

73664824920 is an abundant number, since it is smaller than the sum of its proper divisors (148189643400).

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

73664824920 is a wasteful number, since it uses less digits than its factorization.

73664824920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388884 (or 2388880 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 73664824920 in words is "seventy-three billion, six hundred sixty-four million, eight hundred twenty-four thousand, nine hundred twenty".