856319752132 has 12 divisors (see below), whose sum is σ = 1613833379116. Its totient is φ = 395224500960.

The previous prime is 856319752117. The next prime is 856319752147. The reversal of 856319752132 is 231257913658.

It is an interprime number because it is at equal distance from previous prime (856319752117) and next prime (856319752147).

It can be written as a sum of positive squares in 2 ways, for example, as 142254191556 + 714065560576 = 377166^2 + 845024^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 16467687541 = 856319752132 / (8 + 5 + 6 + 3 + 1 + 9 + 7 + 5 + 2 + 1 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 856319752132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8233843719 + ... + 8233843822.

Almost surely, 2^856319752132 is an apocalyptic number.

It is an amenable number.

856319752132 is a deficient number, since it is larger than the sum of its proper divisors (757513626984).

856319752132 is a wasteful number, since it uses less digits than its factorization.

856319752132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16467687558 (or 16467687556 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The spelling of 856319752132 in words is "eight hundred fifty-six billion, three hundred nineteen million, seven hundred fifty-two thousand, one hundred thirty-two".