2568837606721 has 8 divisors (see below), whose sum is σ = 2728163065824. Its totient is φ = 2410425188160.

The previous prime is 2568837606703. The next prime is 2568837606763. The reversal of 2568837606721 is 1276067388652.

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

It is a cyclic number.

It is not a de Polignac number, because 2568837606721 - 2³⁵ = 2534477868353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2568837606721.

It is not an unprimeable number, because it can be changed into a prime (2568837603721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228254335 + ... + 228265588.

It is an arithmetic number, because the mean of its divisors is an integer number (341020383228).

Almost surely, 2^{2568837606721} is an apocalyptic number.

It is an amenable number.

2568837606721 is a deficient number, since it is larger than the sum of its proper divisors (159325459103).

2568837606721 is a wasteful number, since it uses less digits than its factorization.

2568837606721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456520271.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 2568837606721 in words is "two trillion, five hundred sixty-eight billion, eight hundred thirty-seven million, six hundred six thousand, seven hundred twenty-one".