2564718492 has 48 divisors (see below), whose sum is σ = 7024102400. Its totient is φ = 712971072.

The previous prime is 2564718491. The next prime is 2564718493. The reversal of 2564718492 is 2948174652.

It is an interprime number because it is at equal distance from previous prime (2564718491) and next prime (2564718493).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564718491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409492 + ... + 415707.

Almost surely, 2^2564718492 is an apocalyptic number.

It is an amenable number.

2564718492 is an abundant number, since it is smaller than the sum of its proper divisors (4459383908).

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

2564718492 is a wasteful number, since it uses less digits than its factorization.

2564718492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825250 (or 825248 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 2564718492 is about 50643.0497896799. The cubic root of 2564718492 is about 1368.8207110610.

The spelling of 2564718492 in words is "two billion, five hundred sixty-four million, seven hundred eighteen thousand, four hundred ninety-two".