862472545636 has 81 divisors (see below), whose sum is σ = 1709609455659. Its totient is φ = 380511935232.

The previous prime is 862472545609. The next prime is 862472545639. The reversal of 862472545636 is 636545274268.

It is a happy number.

The square root of 862472545636 is 928694.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 488173305636 + 374299240000 = 698694^2 + 611800^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (862472545639) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 555358236 + ... + 555359788.

Almost surely, 2^862472545636 is an apocalyptic number.

862472545636 is the 928694-th square number.

It is an amenable number.

862472545636 is a deficient number, since it is larger than the sum of its proper divisors (847136910023).

862472545636 is a wasteful number, since it uses less digits than its factorization.

862472545636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182 (or 1591 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 58.

The spelling of 862472545636 in words is "eight hundred sixty-two billion, four hundred seventy-two million, five hundred forty-five thousand, six hundred thirty-six".