531832078525728 has 48 divisors (see below), whose sum is σ = 1396061320411296. Its totient is φ = 177277091028480.

The previous prime is 531832078525663. The next prime is 531832078525753. The reversal of 531832078525728 is 827525870238135.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×531832078525728² (a number of 30 digits) contains 22 as substring.

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, 65528275 + ... + 73195757.

It is an arithmetic number, because the mean of its divisors is an integer number (29084610841902).

Almost surely, 2^{531832078525728} is an apocalyptic number.

It is an amenable number.

531832078525728 is an abundant number, since it is smaller than the sum of its proper divisors (864229241885568).

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

531832078525728 is a wasteful number, since it uses less digits than its factorization.

531832078525728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390017 (or 8390009 counting only the distinct ones).

The product of its (nonzero) digits is 225792000, while the sum is 66.

The spelling of 531832078525728 in words is "five hundred thirty-one trillion, eight hundred thirty-two billion, seventy-eight million, five hundred twenty-five thousand, seven hundred twenty-eight".