872731351528 has 8 divisors (see below), whose sum is σ = 1636371284130. Its totient is φ = 436365675760.

The previous prime is 872731351517. The next prime is 872731351537. The reversal of 872731351528 is 825153137278.

It can be written as a sum of positive squares in only one way, i.e., 450753789924 + 421977561604 = 671382^2 + 649598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54545709463 + ... + 54545709478.

Almost surely, 2^872731351528 is an apocalyptic number.

It is an amenable number.

872731351528 is a deficient number, since it is larger than the sum of its proper divisors (763639932602).

872731351528 is a wasteful number, since it uses less digits than its factorization.

872731351528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109091418947 (or 109091418943 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 52.

The spelling of 872731351528 in words is "eight hundred seventy-two billion, seven hundred thirty-one million, three hundred fifty-one thousand, five hundred twenty-eight".