18473525522 has 8 divisors (see below), whose sum is σ = 27733636656. Its totient is φ = 9228979972.

The previous prime is 18473525519. The next prime is 18473525531. The reversal of 18473525522 is 22552537481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18473525522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3888428 + ... + 3893175.

It is an arithmetic number, because the mean of its divisors is an integer number (3466704582).

Almost surely, 2^18473525522 is an apocalyptic number.

18473525522 is a deficient number, since it is larger than the sum of its proper divisors (9260111134).

18473525522 is a wasteful number, since it uses less digits than its factorization.

18473525522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7782792.

The product of its digits is 672000, while the sum is 44.

The spelling of 18473525522 in words is "eighteen billion, four hundred seventy-three million, five hundred twenty-five thousand, five hundred twenty-two".