18799925487401 has 16 divisors (see below), whose sum is σ = 20076322675200. Its totient is φ = 17565447715200.

The previous prime is 18799925487379. The next prime is 18799925487439. The reversal of 18799925487401 is 10478452999781.

It is a cyclic number.

It is not a de Polignac number, because 18799925487401 - 2³⁰ = 18798851745577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18799925487901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24122261 + ... + 24889421.

It is an arithmetic number, because the mean of its divisors is an integer number (1254770167200).

Almost surely, 2^{18799925487401} is an apocalyptic number.

It is an amenable number.

18799925487401 is a deficient number, since it is larger than the sum of its proper divisors (1276397187799).

18799925487401 is a wasteful number, since it uses less digits than its factorization.

18799925487401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794480.

The product of its (nonzero) digits is 365783040, while the sum is 74.

The spelling of 18799925487401 in words is "eighteen trillion, seven hundred ninety-nine billion, nine hundred twenty-five million, four hundred eighty-seven thousand, four hundred one".