73680479980 has 24 divisors (see below), whose sum is σ = 154735268688. Its totient is φ = 29470999488.

The previous prime is 73680479963. The next prime is 73680480007. The reversal of 73680479980 is 8997408637.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566647 + ... + 684433.

It is an arithmetic number, because the mean of its divisors is an integer number (6447302862).

Almost surely, 2^73680479980 is an apocalyptic number.

It is an amenable number.

73680479980 is an abundant number, since it is smaller than the sum of its proper divisors (81054788708).

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

73680479980 is a wasteful number, since it uses less digits than its factorization.

73680479980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149073 (or 149071 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 73680479980 in words is "seventy-three billion, six hundred eighty million, four hundred seventy-nine thousand, nine hundred eighty".