2567680613 has 4 divisors (see below), whose sum is σ = 2598616608. Its totient is φ = 2536744620.

The previous prime is 2567680603. The next prime is 2567680631. The reversal of 2567680613 is 3160867652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2567680613 - 2²² = 2563486309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2567680603) 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, 15467873 + ... + 15468038.

It is an arithmetic number, because the mean of its divisors is an integer number (649654152).

Almost surely, 2^2567680613 is an apocalyptic number.

It is an amenable number.

2567680613 is a deficient number, since it is larger than the sum of its proper divisors (30935995).

2567680613 is an equidigital number, since it uses as much as digits as its factorization.

2567680613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30935994.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 2567680613 is about 50672.2864394335. The cubic root of 2567680613 is about 1369.3474813646.

The spelling of 2567680613 in words is "two billion, five hundred sixty-seven million, six hundred eighty thousand, six hundred thirteen".