2564869192242 has 64 divisors (see below), whose sum is σ = 5873475836160. Its totient is φ = 731455893504.

The previous prime is 2564869192147. The next prime is 2564869192243. The reversal of 2564869192242 is 2422919684652.

It is not an unprimeable number, because it can be changed into a prime (2564869192243) 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, 82210198 + ... + 82241390.

It is an arithmetic number, because the mean of its divisors is an integer number (91773059940).

Almost surely, 2^{2564869192242} is an apocalyptic number.

2564869192242 is an abundant number, since it is smaller than the sum of its proper divisors (3308606643918).

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

2564869192242 is a wasteful number, since it uses less digits than its factorization.

2564869192242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34787.

The product of its digits is 29859840, while the sum is 60.

The spelling of 2564869192242 in words is "two trillion, five hundred sixty-four billion, eight hundred sixty-nine million, one hundred ninety-two thousand, two hundred forty-two".