85108611870 has 64 divisors (see below), whose sum is σ = 227422679040. Its totient is φ = 22648991904.

The previous prime is 85108611857. The next prime is 85108611871. The reversal of 85108611870 is 7811680158.

85108611870 is a `hidden beast` number, since 8 + 510 + 8 + 61 + 1 + 8 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85108611871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192142 + ... + 455121.

It is an arithmetic number, because the mean of its divisors is an integer number (3553479360).

Almost surely, 2^85108611870 is an apocalyptic number.

85108611870 is an abundant number, since it is smaller than the sum of its proper divisors (142314067170).

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

85108611870 is a wasteful number, since it uses less digits than its factorization.

85108611870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647766 (or 647760 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 45.

The spelling of 85108611870 in words is "eighty-five billion, one hundred eight million, six hundred eleven thousand, eight hundred seventy".