85088863815 has 16 divisors (see below), whose sum is σ = 136154489856. Its totient is φ = 45376624800.

The previous prime is 85088863793. The next prime is 85088863819. The reversal of 85088863815 is 51836888058.

It is not a de Polignac number, because 85088863815 - 2⁶ = 85088863751 is a prime.

It is a super-2 number, since 2×85088863815² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85088863819) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 81091 + ... + 420420.

It is an arithmetic number, because the mean of its divisors is an integer number (8509655616).

Almost surely, 2^85088863815 is an apocalyptic number.

85088863815 is a deficient number, since it is larger than the sum of its proper divisors (51065626041).

85088863815 is a wasteful number, since it uses less digits than its factorization.

85088863815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512830.

The product of its (nonzero) digits is 14745600, while the sum is 60.

The spelling of 85088863815 in words is "eighty-five billion, eighty-eight million, eight hundred sixty-three thousand, eight hundred fifteen".