85192870842 has 24 divisors (see below), whose sum is σ = 184590618420. Its totient is φ = 28396690560.

The previous prime is 85192870811. The next prime is 85192870879. The reversal of 85192870842 is 24807829158.

85192870842 is a `hidden beast` number, since 8 + 519 + 2 + 87 + 0 + 8 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67850351361 + 17342519481 = 260481^2 + 131691^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690384 + ... + 804372.

Almost surely, 2^85192870842 is an apocalyptic number.

85192870842 is an abundant number, since it is smaller than the sum of its proper divisors (99397747578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85192870842 is a wasteful number, since it uses less digits than its factorization.

85192870842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155518 (or 155515 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 85192870842 in words is "eighty-five billion, one hundred ninety-two million, eight hundred seventy thousand, eight hundred forty-two".