2531140642405 has 16 divisors (see below), whose sum is σ = 3080014225344. Its totient is φ = 1996500908160.

The previous prime is 2531140642369. The next prime is 2531140642409. The reversal of 2531140642405 is 5042460411352.

It is not a de Polignac number, because 2531140642405 - 2⁹ = 2531140641893 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 (2531140642409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82639 + ... + 2251468.

It is an arithmetic number, because the mean of its divisors is an integer number (192500889084).

Almost surely, 2^{2531140642405} is an apocalyptic number.

It is an amenable number.

2531140642405 is a deficient number, since it is larger than the sum of its proper divisors (548873582939).

2531140642405 is a wasteful number, since it uses less digits than its factorization.

2531140642405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337156.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 2531140642405 in words is "two trillion, five hundred thirty-one billion, one hundred forty million, six hundred forty-two thousand, four hundred five".