27577874873551 has 2 divisors, whose sum is σ = 27577874873552. Its totient is φ = 27577874873550.

The previous prime is 27577874873501. The next prime is 27577874873579. The reversal of 27577874873551 is 15537847877572.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27577874873551 - 2²³ = 27577866484943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27577874873501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13788937436775 + 13788937436776.

It is an arithmetic number, because the mean of its divisors is an integer number (13788937436776).

Almost surely, 2^{27577874873551} is an apocalyptic number.

27577874873551 is a deficient number, since it is larger than the sum of its proper divisors (1).

27577874873551 is an equidigital number, since it uses as much as digits as its factorization.

27577874873551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3226944000, while the sum is 76.

The spelling of 27577874873551 in words is "twenty-seven trillion, five hundred seventy-seven billion, eight hundred seventy-four million, eight hundred seventy-three thousand, five hundred fifty-one".