18475925662425 has 96 divisors (see below), whose sum is σ = 38142731566080. Its totient is φ = 7666546694400.

The previous prime is 18475925662391. The next prime is 18475925662501. The reversal of 18475925662425 is 52426652957481.

It is a happy number.

It is not a de Polignac number, because 18475925662425 - 2⁷ = 18475925662297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1321386 + ... + 6220764.

It is an arithmetic number, because the mean of its divisors is an integer number (397320120480).

Almost surely, 2^{18475925662425} is an apocalyptic number.

18475925662425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18475925662425 is an abundant number, since it is smaller than the sum of its proper divisors (19666805903655).

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

18475925662425 is a wasteful number, since it uses less digits than its factorization.

18475925662425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900063 (or 4900058 counting only the distinct ones).

The product of its digits is 290304000, while the sum is 66.

The spelling of 18475925662425 in words is "eighteen trillion, four hundred seventy-five billion, nine hundred twenty-five million, six hundred sixty-two thousand, four hundred twenty-five".