18872885601 has 8 divisors (see below), whose sum is σ = 27959830560. Its totient is φ = 12581923716.

The previous prime is 18872885557. The next prime is 18872885621. The reversal of 18872885601 is 10658827881.

18872885601 is a `hidden beast` number, since 1 + 8 + 8 + 7 + 28 + 8 + 5 + 601 = 666.

It is not a de Polignac number, because 18872885601 - 2¹⁷ = 18872754529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18872885621) 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, 349497855 + ... + 349497908.

It is an arithmetic number, because the mean of its divisors is an integer number (3494978820).

Almost surely, 2^18872885601 is an apocalyptic number.

It is an amenable number.

18872885601 is a deficient number, since it is larger than the sum of its proper divisors (9086944959).

18872885601 is an equidigital number, since it uses as much as digits as its factorization.

18872885601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698995772 (or 698995766 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 54.

The spelling of 18872885601 in words is "eighteen billion, eight hundred seventy-two million, eight hundred eighty-five thousand, six hundred one".