18628122975 has 288 divisors, whose sum is σ = 41797324800. Its totient is φ = 7217683200.

The previous prime is 18628122967. The next prime is 18628123043. The reversal of 18628122975 is 57922182681.

It is not a de Polignac number, because 18628122975 - 2³ = 18628122967 is a prime.

It is a super-3 number, since 3×18628122975³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 60677772 + ... + 60678078.

It is an arithmetic number, because the mean of its divisors is an integer number (145129600).

Almost surely, 2^18628122975 is an apocalyptic number.

18628122975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18628122975 is an abundant number, since it is smaller than the sum of its proper divisors (23169201825).

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

18628122975 is a wasteful number, since it uses less digits than its factorization.

18628122975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 431 counting only the distinct ones).

The product of its digits is 967680, while the sum is 51.

The spelling of 18628122975 in words is "eighteen billion, six hundred twenty-eight million, one hundred twenty-two thousand, nine hundred seventy-five".