2540046591495 has 160 divisors (see below), whose sum is σ = 5379672173568. Its totient is φ = 1122462738432.

The previous prime is 2540046591487. The next prime is 2540046591497. The reversal of 2540046591495 is 5941956400452.

It is a happy number.

2540046591495 is a `hidden beast` number, since 2 + 5 + 4 + 0 + 0 + 4 + 6 + 591 + 49 + 5 = 666.

It is not a de Polignac number, because 2540046591495 - 2³ = 2540046591487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540046591497) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11717382 + ... + 11932188.

Almost surely, 2^{2540046591495} is an apocalyptic number.

2540046591495 is an abundant number, since it is smaller than the sum of its proper divisors (2839625582073).

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

2540046591495 is a wasteful number, since it uses less digits than its factorization.

2540046591495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214971 (or 214962 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 2540046591495 in words is "two trillion, five hundred forty billion, forty-six million, five hundred ninety-one thousand, four hundred ninety-five".