2639187525125 has 16 divisors (see below), whose sum is σ = 3314685075312. Its totient is φ = 2097901915200.

The previous prime is 2639187525083. The next prime is 2639187525199. The reversal of 2639187525125 is 5215257819362.

It can be written as a sum of positive squares in 8 ways, for example, as 391973662084 + 2247213863041 = 626078^2 + 1499071^2 .

It is not a de Polignac number, because 2639187525125 - 2¹⁶ = 2639187459589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67220822 + ... + 67260071.

It is an arithmetic number, because the mean of its divisors is an integer number (207167817207).

Almost surely, 2^{2639187525125} is an apocalyptic number.

2639187525125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2639187525125 is a deficient number, since it is larger than the sum of its proper divisors (675497550187).

2639187525125 is a wasteful number, since it uses less digits than its factorization.

2639187525125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134481065 (or 134481055 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 56.

The spelling of 2639187525125 in words is "two trillion, six hundred thirty-nine billion, one hundred eighty-seven million, five hundred twenty-five thousand, one hundred twenty-five".