18057838025 has 12 divisors (see below), whose sum is σ = 22814206092. Its totient is φ = 14173698240.

The previous prime is 18057837989. The next prime is 18057838031. The reversal of 18057838025 is 52083875081.

It can be written as a sum of positive squares in 6 ways, for example, as 767954944 + 17289883081 = 27712^2 + 131491^2 .

It is not a de Polignac number, because 18057838025 - 2¹² = 18057833929 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6812954 + ... + 6815603.

It is an arithmetic number, because the mean of its divisors is an integer number (1901183841).

Almost surely, 2^18057838025 is an apocalyptic number.

It is an amenable number.

18057838025 is a deficient number, since it is larger than the sum of its proper divisors (4756368067).

18057838025 is a wasteful number, since it uses less digits than its factorization.

18057838025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13628620 (or 13628615 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 18057838025 in words is "eighteen billion, fifty-seven million, eight hundred thirty-eight thousand, twenty-five".