872461132456 has 32 divisors (see below), whose sum is σ = 1676161567080. Its totient is φ = 425489766400.

The previous prime is 872461132423. The next prime is 872461132463. The reversal of 872461132456 is 654231164278.

It can be written as a sum of positive squares in 4 ways, for example, as 574312371556 + 298148760900 = 757834^2 + 546030^2 .

It is a super-2 number, since 2×872461132456² (a number of 25 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, 1077450 + ... + 1704646.

Almost surely, 2^872461132456 is an apocalyptic number.

It is an amenable number.

872461132456 is a deficient number, since it is larger than the sum of its proper divisors (803700434624).

872461132456 is a wasteful number, since it uses less digits than its factorization.

872461132456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631485 (or 631481 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The spelling of 872461132456 in words is "eight hundred seventy-two billion, four hundred sixty-one million, one hundred thirty-two thousand, four hundred fifty-six".