18884025882625 has 8 divisors (see below), whose sum is σ = 23567264301672. Its totient is φ = 15107220706000.

The previous prime is 18884025882619. The next prime is 18884025882637. The reversal of 18884025882625 is 52628852048881.

It can be written as a sum of positive squares in 4 ways, for example, as 1013148941809 + 17870876940816 = 1006553^2 + 4227396^2 .

It is not a de Polignac number, because 18884025882625 - 2¹³ = 18884025874433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75536103406 + ... + 75536103655.

It is an arithmetic number, because the mean of its divisors is an integer number (2945908037709).

Almost surely, 2^{18884025882625} is an apocalyptic number.

It is an amenable number.

18884025882625 is a deficient number, since it is larger than the sum of its proper divisors (4683238419047).

18884025882625 is an equidigital number, since it uses as much as digits as its factorization.

18884025882625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151072207076 (or 151072207066 counting only the distinct ones).

The product of its (nonzero) digits is 157286400, while the sum is 67.

The spelling of 18884025882625 in words is "eighteen trillion, eight hundred eighty-four billion, twenty-five million, eight hundred eighty-two thousand, six hundred twenty-five".