2564351234634 has 24 divisors (see below), whose sum is σ = 5966041648608. Its totient is φ = 732671781240.

The previous prime is 2564351234591. The next prime is 2564351234659. The reversal of 2564351234634 is 4364321534652.

It is a super-2 number, since 2×2564351234634² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4361141262 + ... + 4361141849.

It is an arithmetic number, because the mean of its divisors is an integer number (248585068692).

Almost surely, 2^{2564351234634} is an apocalyptic number.

2564351234634 is an abundant number, since it is smaller than the sum of its proper divisors (3401690413974).

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

2564351234634 is a wasteful number, since it uses less digits than its factorization.

2564351234634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722283130 (or 8722283123 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 48.

The spelling of 2564351234634 in words is "two trillion, five hundred sixty-four billion, three hundred fifty-one million, two hundred thirty-four thousand, six hundred thirty-four".