729109170980 has 12 divisors (see below), whose sum is σ = 1531129259100. Its totient is φ = 291643668384.

The previous prime is 729109170961. The next prime is 729109170991. The reversal of 729109170980 is 89071901927.

It can be written as a sum of positive squares in 2 ways, for example, as 121248811264 + 607860359716 = 348208^2 + 779654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18227729255 + ... + 18227729294.

It is an arithmetic number, because the mean of its divisors is an integer number (127594104925).

Almost surely, 2^729109170980 is an apocalyptic number.

It is an amenable number.

729109170980 is an abundant number, since it is smaller than the sum of its proper divisors (802020088120).

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

729109170980 is a wasteful number, since it uses less digits than its factorization.

729109170980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36455458558 (or 36455458556 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 53.

The spelling of 729109170980 in words is "seven hundred twenty-nine billion, one hundred nine million, one hundred seventy thousand, nine hundred eighty".