18809926328652 has 24 divisors (see below), whose sum is σ = 43890519010800. Its totient is φ = 6269876741376.

The previous prime is 18809926328651. The next prime is 18809926328723. The reversal of 18809926328652 is 25682362990881.

It is a super-2 number, since 2×18809926328652² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18809926328651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11541577 + ... + 13070112.

It is an arithmetic number, because the mean of its divisors is an integer number (1828771625450).

Almost surely, 2^{18809926328652} is an apocalyptic number.

18809926328652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18809926328652 is an abundant number, since it is smaller than the sum of its proper divisors (25080592682148).

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

18809926328652 is a wasteful number, since it uses less digits than its factorization.

18809926328652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24675385 (or 24675383 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 69.

The spelling of 18809926328652 in words is "eighteen trillion, eight hundred nine billion, nine hundred twenty-six million, three hundred twenty-eight thousand, six hundred fifty-two".