85469468172 has 48 divisors (see below), whose sum is σ = 217752753792. Its totient is φ = 25876730880.

The previous prime is 85469468171. The next prime is 85469468177. The reversal of 85469468172 is 27186496458.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85469468171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140053 + ... + 436524.

It is an arithmetic number, because the mean of its divisors is an integer number (4536515704).

Almost surely, 2^85469468172 is an apocalyptic number.

It is an amenable number.

85469468172 is an abundant number, since it is smaller than the sum of its proper divisors (132283285620).

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

85469468172 is a wasteful number, since it uses less digits than its factorization.

85469468172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577718 (or 577716 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 60.

The spelling of 85469468172 in words is "eighty-five billion, four hundred sixty-nine million, four hundred sixty-eight thousand, one hundred seventy-two".