27977167433 has 2 divisors, whose sum is σ = 27977167434. Its totient is φ = 27977167432.

The previous prime is 27977167403. The next prime is 27977167447. The reversal of 27977167433 is 33476177972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18658740409 + 9318427024 = 136597^2 + 96532^2 .

It is a cyclic number.

It is not a de Polignac number, because 27977167433 - 2¹⁸ = 27976905289 is a prime.

It is not a weakly prime, because it can be changed into another prime (27977167403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13988583716 + 13988583717.

It is an arithmetic number, because the mean of its divisors is an integer number (13988583717).

Almost surely, 2^27977167433 is an apocalyptic number.

It is an amenable number.

27977167433 is a deficient number, since it is larger than the sum of its proper divisors (1).

27977167433 is an equidigital number, since it uses as much as digits as its factorization.

27977167433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9335088, while the sum is 56.

The spelling of 27977167433 in words is "twenty-seven billion, nine hundred seventy-seven million, one hundred sixty-seven thousand, four hundred thirty-three".