73615132920 has 128 divisors (see below), whose sum is σ = 265678732800. Its totient is φ = 15940717056.

The previous prime is 73615132907. The next prime is 73615132931. The reversal of 73615132920 is 2923151637.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2290279 + ... + 2322198.

It is an arithmetic number, because the mean of its divisors is an integer number (2075615100).

Almost surely, 2^73615132920 is an apocalyptic number.

73615132920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73615132920 is an abundant number, since it is smaller than the sum of its proper divisors (192063599880).

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

73615132920 is a wasteful number, since it uses less digits than its factorization.

73615132920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612517 (or 4612513 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 73615132920 in words is "seventy-three billion, six hundred fifteen million, one hundred thirty-two thousand, nine hundred twenty".