85856454475 has 96 divisors (see below), whose sum is σ = 129398860800. Its totient is φ = 56204403200.

The previous prime is 85856454449. The next prime is 85856454479. The reversal of 85856454475 is 57445465858.

It is a de Polignac number, because none of the positive numbers 2^k-85856454475 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85856454479) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13007226 + ... + 13013824.

It is an arithmetic number, because the mean of its divisors is an integer number (1347904800).

Almost surely, 2^85856454475 is an apocalyptic number.

85856454475 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

85856454475 is a deficient number, since it is larger than the sum of its proper divisors (43542406325).

85856454475 is a wasteful number, since it uses less digits than its factorization.

85856454475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6682 (or 6655 counting only the distinct ones).

The product of its digits is 107520000, while the sum is 61.

The spelling of 85856454475 in words is "eighty-five billion, eight hundred fifty-six million, four hundred fifty-four thousand, four hundred seventy-five".