731720286860 has 12 divisors (see below), whose sum is σ = 1536612602448. Its totient is φ = 292688114736.

The previous prime is 731720286811. The next prime is 731720286901. The reversal of 731720286860 is 68682027137.

731720286860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 731720286799 and 731720286808.

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, 18293007152 + ... + 18293007191.

It is an arithmetic number, because the mean of its divisors is an integer number (128051050204).

Almost surely, 2^731720286860 is an apocalyptic number.

It is an amenable number.

731720286860 is an abundant number, since it is smaller than the sum of its proper divisors (804892315588).

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

731720286860 is a wasteful number, since it uses less digits than its factorization.

731720286860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36586014352 (or 36586014350 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 731720286860 in words is "seven hundred thirty-one billion, seven hundred twenty million, two hundred eighty-six thousand, eight hundred sixty".