18475872264 has 96 divisors (see below), whose sum is σ = 51320412000. Its totient is φ = 6001551360.

The previous prime is 18475872257. The next prime is 18475872269. The reversal of 18475872264 is 46227857481.

18475872264 is a `hidden beast` number, since 18 + 47 + 587 + 2 + 2 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18475872264.

It is not an unprimeable number, because it can be changed into a prime (18475872269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1383459 + ... + 1396749.

It is an arithmetic number, because the mean of its divisors is an integer number (534587625).

Almost surely, 2^18475872264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18475872264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25660206000).

18475872264 is an abundant number, since it is smaller than the sum of its proper divisors (32844539736).

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

18475872264 is a wasteful number, since it uses less digits than its factorization.

18475872264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13795 (or 13788 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The spelling of 18475872264 in words is "eighteen billion, four hundred seventy-five million, eight hundred seventy-two thousand, two hundred sixty-four".