73989699524 has 24 divisors (see below), whose sum is σ = 141406106688. Its totient is φ = 33668117280.

The previous prime is 73989699503. The next prime is 73989699527. The reversal of 73989699524 is 42599698937.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is not an unprimeable number, because it can be changed into a prime (73989699527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10016582 + ... + 10023965.

It is an arithmetic number, because the mean of its divisors is an integer number (5891921112).

Almost surely, 2^73989699524 is an apocalyptic number.

It is an amenable number.

73989699524 is a deficient number, since it is larger than the sum of its proper divisors (67416407164).

73989699524 is a wasteful number, since it uses less digits than its factorization.

73989699524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20040635 (or 20040633 counting only the distinct ones).

The product of its digits is 264539520, while the sum is 71.

The spelling of 73989699524 in words is "seventy-three billion, nine hundred eighty-nine million, six hundred ninety-nine thousand, five hundred twenty-four".