2731520262125 has 16 divisors (see below), whose sum is σ = 3412056339120. Its totient is φ = 2183216817600.

The previous prime is 2731520262083. The next prime is 2731520262131. The reversal of 2731520262125 is 5212620251372.

It can be written as a sum of positive squares in 8 ways, for example, as 1012363982569 + 1719156279556 = 1006163^2 + 1311166^2 .

It is not a de Polignac number, because 2731520262125 - 2¹⁸ = 2731519999981 is a prime.

It is a super-2 number, since 2×2731520262125² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9859790 + ... + 10133039.

It is an arithmetic number, because the mean of its divisors is an integer number (213253521195).

Almost surely, 2^{2731520262125} is an apocalyptic number.

2731520262125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2731520262125 is a deficient number, since it is larger than the sum of its proper divisors (680536076995).

2731520262125 is a wasteful number, since it uses less digits than its factorization.

2731520262125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19993937 (or 19993927 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 2731520262125 in words is "two trillion, seven hundred thirty-one billion, five hundred twenty million, two hundred sixty-two thousand, one hundred twenty-five".