18425519316 has 72 divisors (see below), whose sum is σ = 47090632680. Its totient is φ = 6074302464.

The previous prime is 18425519303. The next prime is 18425519381. The reversal of 18425519316 is 61391552481.

It is a happy number.

18425519316 is a `hidden beast` number, since 1 + 8 + 4 + 2 + 551 + 93 + 1 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1213128900 + 17212390416 = 34830^2 + 131196^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1194340 + ... + 1209668.

It is an arithmetic number, because the mean of its divisors is an integer number (654036565).

Almost surely, 2^18425519316 is an apocalyptic number.

It is an amenable number.

18425519316 is an abundant number, since it is smaller than the sum of its proper divisors (28665113364).

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

18425519316 is a wasteful number, since it uses less digits than its factorization.

18425519316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15705 (or 15700 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 18425519316 in words is "eighteen billion, four hundred twenty-five million, five hundred nineteen thousand, three hundred sixteen".