2635940311325 has 24 divisors (see below), whose sum is σ = 3274133811816. Its totient is φ = 2105161344000.

The previous prime is 2635940311321. The next prime is 2635940311331. The reversal of 2635940311325 is 5231130495362.

It can be written as a sum of positive squares in 12 ways, for example, as 535171254916 + 2100769056409 = 731554^2 + 1449403^2 .

It is not a de Polignac number, because 2635940311325 - 2² = 2635940311321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2635940311321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111713729 + ... + 111737321.

It is an arithmetic number, because the mean of its divisors is an integer number (136422242159).

Almost surely, 2^{2635940311325} is an apocalyptic number.

2635940311325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2635940311325 is a deficient number, since it is larger than the sum of its proper divisors (638193500491).

2635940311325 is a wasteful number, since it uses less digits than its factorization.

2635940311325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31025 (or 31020 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 2635940311325 in words is "two trillion, six hundred thirty-five billion, nine hundred forty million, three hundred eleven thousand, three hundred twenty-five".