18601926008428 has 12 divisors (see below), whose sum is σ = 37203852016912. Its totient is φ = 7972254003600.

The previous prime is 18601926008423. The next prime is 18601926008459. The reversal of 18601926008428 is 82480062910681.

18601926008428 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18601926008423) 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, 332177250123 + ... + 332177250178.

Almost surely, 2^{18601926008428} is an apocalyptic number.

It is an amenable number.

18601926008428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18601926008428 is a wasteful number, since it uses less digits than its factorization.

18601926008428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664354500312 (or 664354500310 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 55.

The spelling of 18601926008428 in words is "eighteen trillion, six hundred one billion, nine hundred twenty-six million, eight thousand, four hundred twenty-eight".