85734802531 has 16 divisors (see below), whose sum is σ = 101254019328. Its totient is φ = 71067276000.

The previous prime is 85734802523. The next prime is 85734802537. The reversal of 85734802531 is 13520843758.

It is not a de Polignac number, because 85734802531 - 2³ = 85734802523 is a prime.

It is a super-2 number, since 2×85734802531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85734802537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1379665 + ... + 1440466.

It is an arithmetic number, because the mean of its divisors is an integer number (6328376208).

Almost surely, 2^85734802531 is an apocalyptic number.

85734802531 is a deficient number, since it is larger than the sum of its proper divisors (15519216797).

85734802531 is a wasteful number, since it uses less digits than its factorization.

85734802531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820282.

The product of its (nonzero) digits is 806400, while the sum is 46.

It can be divided in two parts, 8573480 and 2531, that added together give a triangular number (8576011 = T₄₁₄₁).

The spelling of 85734802531 in words is "eighty-five billion, seven hundred thirty-four million, eight hundred two thousand, five hundred thirty-one".