27776330551 has 2 divisors, whose sum is σ = 27776330552. Its totient is φ = 27776330550.

The previous prime is 27776330513. The next prime is 27776330563. The reversal of 27776330551 is 15503367772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27776330551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27776330501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888165275 + 13888165276.

It is an arithmetic number, because the mean of its divisors is an integer number (13888165276).

Almost surely, 2^27776330551 is an apocalyptic number.

27776330551 is a deficient number, since it is larger than the sum of its proper divisors (1).

27776330551 is an equidigital number, since it uses as much as digits as its factorization.

27776330551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 926100, while the sum is 46.

The spelling of 27776330551 in words is "twenty-seven billion, seven hundred seventy-six million, three hundred thirty thousand, five hundred fifty-one".