2540507811582 has 64 divisors (see below), whose sum is σ = 5669484206400. Its totient is φ = 753837041664.

The previous prime is 2540507811581. The next prime is 2540507811587. The reversal of 2540507811582 is 2851187050452.

2540507811582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540507811581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3568957 + ... + 4221192.

It is an arithmetic number, because the mean of its divisors is an integer number (88585690725).

Almost surely, 2^{2540507811582} is an apocalyptic number.

2540507811582 is an abundant number, since it is smaller than the sum of its proper divisors (3128976394818).

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

2540507811582 is a wasteful number, since it uses less digits than its factorization.

2540507811582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790317.

The product of its (nonzero) digits is 896000, while the sum is 48.

The spelling of 2540507811582 in words is "two trillion, five hundred forty billion, five hundred seven million, eight hundred eleven thousand, five hundred eighty-two".