2540131302402 has 32 divisors (see below), whose sum is σ = 5649156691200. Its totient is φ = 846047364624.

The previous prime is 2540131302391. The next prime is 2540131302437. The reversal of 2540131302402 is 2042031310452.

2540131302402 is a `hidden beast` number, since 2 + 5 + 401 + 3 + 13 + 0 + 240 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18349002 + ... + 18486917.

It is an arithmetic number, because the mean of its divisors is an integer number (176536146600).

Almost surely, 2^{2540131302402} is an apocalyptic number.

2540131302402 is an abundant number, since it is smaller than the sum of its proper divisors (3109025388798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2540131302402 is a wasteful number, since it uses less digits than its factorization.

2540131302402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36837207 (or 36837201 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 2540131302402 its reverse (2042031310452), we get a palindrome (4582162612854).

The spelling of 2540131302402 in words is "two trillion, five hundred forty billion, one hundred thirty-one million, three hundred two thousand, four hundred two".