85131961322 has 32 divisors (see below), whose sum is σ = 133690943232. Its totient is φ = 40617347904.

The previous prime is 85131961319. The next prime is 85131961379. The reversal of 85131961322 is 22316913158.

It is a self number, because there is not a number n which added to its sum of digits gives 85131961322.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2232488 + ... + 2270300.

It is an arithmetic number, because the mean of its divisors is an integer number (4177841976).

Almost surely, 2^85131961322 is an apocalyptic number.

85131961322 is a deficient number, since it is larger than the sum of its proper divisors (48558981910).

85131961322 is a wasteful number, since it uses less digits than its factorization.

85131961322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38462.

The product of its digits is 77760, while the sum is 41.

The spelling of 85131961322 in words is "eighty-five billion, one hundred thirty-one million, nine hundred sixty-one thousand, three hundred twenty-two".