85315508910 has 48 divisors (see below), whose sum is σ = 222663808224. Its totient is φ = 22664291136.

The previous prime is 85315508903. The next prime is 85315508923. The reversal of 85315508910 is 1980551358.

85315508910 is a `hidden beast` number, since 8 + 5 + 3 + 1 + 550 + 8 + 91 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1778517 + ... + 1825856.

It is an arithmetic number, because the mean of its divisors is an integer number (4638829338).

Almost surely, 2^85315508910 is an apocalyptic number.

85315508910 is an abundant number, since it is smaller than the sum of its proper divisors (137348299314).

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

85315508910 is a wasteful number, since it uses less digits than its factorization.

85315508910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604649 (or 3604646 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

The spelling of 85315508910 in words is "eighty-five billion, three hundred fifteen million, five hundred eight thousand, nine hundred ten".