18476462172 has 96 divisors (see below), whose sum is σ = 52829521920. Its totient is φ = 4905538560.

The previous prime is 18476462171. The next prime is 18476462183. The reversal of 18476462172 is 27126467481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18476462171) 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, 30922 + ... + 194702.

It is an arithmetic number, because the mean of its divisors is an integer number (550307520).

Almost surely, 2^18476462172 is an apocalyptic number.

18476462172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18476462172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26414760960).

18476462172 is an abundant number, since it is smaller than the sum of its proper divisors (34353059748).

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

18476462172 is a wasteful number, since it uses less digits than its factorization.

18476462172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163891 (or 163889 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The spelling of 18476462172 in words is "eighteen billion, four hundred seventy-six million, four hundred sixty-two thousand, one hundred seventy-two".