15199042974025 has 27 divisors (see below), whose sum is σ = 19296368405109. Its totient is φ = 11875806522720.

The previous prime is 15199042974023. The next prime is 15199042974043. The reversal of 15199042974025 is 52047924099151.

The square root of 15199042974025 is 3898595.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 794346170121 + 14404696803904 = 891261^2 + 3795352^2 .

It is not a de Polignac number, because 15199042974025 - 2¹ = 15199042974023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15199042974023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 838188859 + ... + 838206991.

Almost surely, 2^{15199042974025} is an apocalyptic number.

15199042974025 is the 3898595-th square number.

15199042974025 is the 1949298-th centered octagonal number.

It is an amenable number.

15199042974025 is a deficient number, since it is larger than the sum of its proper divisors (4097325431084).

15199042974025 is an frugal number, since it uses more digits than its factorization.

15199042974025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36362 (or 18181 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 15199042974025 in words is "fifteen trillion, one hundred ninety-nine billion, forty-two million, nine hundred seventy-four thousand, twenty-five".