18075889056 has 24 divisors (see below), whose sum is σ = 47449209024. Its totient is φ = 6025296320.

The previous prime is 18075889031. The next prime is 18075889057. The reversal of 18075889056 is 65098857081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×18075889056² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18075888987 and 18075889005.

It is not an unprimeable number, because it can be changed into a prime (18075889057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94145160 + ... + 94145351.

It is an arithmetic number, because the mean of its divisors is an integer number (1977050376).

Almost surely, 2^18075889056 is an apocalyptic number.

18075889056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18075889056 is an abundant number, since it is smaller than the sum of its proper divisors (29373319968).

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

18075889056 is a wasteful number, since it uses less digits than its factorization.

18075889056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188290524 (or 188290516 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 57.

The spelling of 18075889056 in words is "eighteen billion, seventy-five million, eight hundred eighty-nine thousand, fifty-six".