27754550377 has 2 divisors, whose sum is σ = 27754550378. Its totient is φ = 27754550376.

The previous prime is 27754550357. The next prime is 27754550389. The reversal of 27754550377 is 77305545772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23145362496 + 4609187881 = 152136^2 + 67891^2 .

It is a cyclic number.

It is not a de Polignac number, because 27754550377 - 2¹⁹ = 27754026089 is a prime.

It is not a weakly prime, because it can be changed into another prime (27754550357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877275188 + 13877275189.

It is an arithmetic number, because the mean of its divisors is an integer number (13877275189).

Almost surely, 2^27754550377 is an apocalyptic number.

It is an amenable number.

27754550377 is a deficient number, since it is larger than the sum of its proper divisors (1).

27754550377 is an equidigital number, since it uses as much as digits as its factorization.

27754550377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7203000, while the sum is 52.

The spelling of 27754550377 in words is "twenty-seven billion, seven hundred fifty-four million, five hundred fifty thousand, three hundred seventy-seven".