2567612638 has 8 divisors (see below), whose sum is σ = 3856632840. Its totient is φ = 1282068360.

The previous prime is 2567612627. The next prime is 2567612639. The reversal of 2567612638 is 8362167652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2567612639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867133 + ... + 870088.

It is an arithmetic number, because the mean of its divisors is an integer number (482079105).

Almost surely, 2^2567612638 is an apocalyptic number.

2567612638 is a deficient number, since it is larger than the sum of its proper divisors (1289020202).

2567612638 is a wasteful number, since it uses less digits than its factorization.

2567612638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737962.

The product of its digits is 725760, while the sum is 46.

The square root of 2567612638 is about 50671.6157034685. The cubic root of 2567612638 is about 1369.3353975387.

The spelling of 2567612638 in words is "two billion, five hundred sixty-seven million, six hundred twelve thousand, six hundred thirty-eight".