18779545959625 has 64 divisors (see below), whose sum is σ = 25893245064960. Its totient is φ = 13484066880000.

The previous prime is 18779545959569. The next prime is 18779545959637. The reversal of 18779545959625 is 52695954597781.

It is not a de Polignac number, because 18779545959625 - 2¹⁷ = 18779545828553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 168963571 + ... + 169074679.

It is an arithmetic number, because the mean of its divisors is an integer number (404581954140).

Almost surely, 2^{18779545959625} is an apocalyptic number.

It is an amenable number.

18779545959625 is a deficient number, since it is larger than the sum of its proper divisors (7113699105335).

18779545959625 is a wasteful number, since it uses less digits than its factorization.

18779545959625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112699 (or 112689 counting only the distinct ones).

The product of its digits is 8573040000, while the sum is 82.

The spelling of 18779545959625 in words is "eighteen trillion, seven hundred seventy-nine billion, five hundred forty-five million, nine hundred fifty-nine thousand, six hundred twenty-five".