27768862331 has 16 divisors (see below), whose sum is σ = 32134053888. Its totient is φ = 23504460000.

The previous prime is 27768862309. The next prime is 27768862357. The reversal of 27768862331 is 13326886772.

It is not a de Polignac number, because 27768862331 - 2²⁶ = 27701753467 is a prime.

It is a super-2 number, since 2×27768862331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27768862831) 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, 219506 + ... + 322056.

It is an arithmetic number, because the mean of its divisors is an integer number (2008378368).

Almost surely, 2^27768862331 is an apocalyptic number.

27768862331 is a deficient number, since it is larger than the sum of its proper divisors (4365191557).

27768862331 is a wasteful number, since it uses less digits than its factorization.

27768862331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103042.

The product of its digits is 4064256, while the sum is 53.

The spelling of 27768862331 in words is "twenty-seven billion, seven hundred sixty-eight million, eight hundred sixty-two thousand, three hundred thirty-one".