27770887051 has 2 divisors, whose sum is σ = 27770887052. Its totient is φ = 27770887050.

The previous prime is 27770887049. The next prime is 27770887061. The reversal of 27770887051 is 15078807772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27770887051 - 2¹ = 27770887049 is a prime.

Together with 27770887049, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 27770887051.

It is not a weakly prime, because it can be changed into another prime (27770887061) 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 as a sum of consecutive naturals, namely, 13885443525 + 13885443526.

It is an arithmetic number, because the mean of its divisors is an integer number (13885443526).

Almost surely, 2^27770887051 is an apocalyptic number.

27770887051 is a deficient number, since it is larger than the sum of its proper divisors (1).

27770887051 is an equidigital number, since it uses as much as digits as its factorization.

27770887051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536640, while the sum is 52.

The spelling of 27770887051 in words is "twenty-seven billion, seven hundred seventy million, eight hundred eighty-seven thousand, fifty-one".