27257772313 has 8 divisors (see below), whose sum is σ = 28011029832. Its totient is φ = 26505386496.

The previous prime is 27257772299. The next prime is 27257772317. The reversal of 27257772313 is 31327775272.

It can be written as a sum of positive squares in 4 ways, for example, as 17703100809 + 9554671504 = 133053^2 + 97748^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27257772313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27257772317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154270 + ... + 279847.

It is an arithmetic number, because the mean of its divisors is an integer number (3501378729).

Almost surely, 2^27257772313 is an apocalyptic number.

It is an amenable number.

27257772313 is a deficient number, since it is larger than the sum of its proper divisors (753257519).

27257772313 is a wasteful number, since it uses less digits than its factorization.

27257772313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435851.

The product of its digits is 864360, while the sum is 46.

The spelling of 27257772313 in words is "twenty-seven billion, two hundred fifty-seven million, seven hundred seventy-two thousand, three hundred thirteen".