85187533715 has 16 divisors (see below), whose sum is σ = 108246857760. Its totient is φ = 64136117760.

The previous prime is 85187533637. The next prime is 85187533747. The reversal of 85187533715 is 51733578158.

It is not a de Polignac number, because 85187533715 - 2²² = 85183339411 is a prime.

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, 1305281 + ... + 1368989.

It is an arithmetic number, because the mean of its divisors is an integer number (6765428610).

Almost surely, 2^85187533715 is an apocalyptic number.

85187533715 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

85187533715 is a deficient number, since it is larger than the sum of its proper divisors (23059324045).

85187533715 is a wasteful number, since it uses less digits than its factorization.

85187533715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79462.

The product of its digits is 3528000, while the sum is 53.

The spelling of 85187533715 in words is "eighty-five billion, one hundred eighty-seven million, five hundred thirty-three thousand, seven hundred fifteen".