85786463172 has 12 divisors (see below), whose sum is σ = 200168414096. Its totient is φ = 28595487720.

The previous prime is 85786463123. The next prime is 85786463177. The reversal of 85786463172 is 27136468758.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (85786463177) 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 3 ways as a sum of consecutive naturals, for example, 3574435954 + ... + 3574435977.

Almost surely, 2^85786463172 is an apocalyptic number.

It is an amenable number.

85786463172 is an abundant number, since it is smaller than the sum of its proper divisors (114381950924).

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

85786463172 is a wasteful number, since it uses less digits than its factorization.

85786463172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148871938 (or 7148871936 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 85786463172 in words is "eighty-five billion, seven hundred eighty-six million, four hundred sixty-three thousand, one hundred seventy-two".