27977636413453 has 2 divisors, whose sum is σ = 27977636413454. Its totient is φ = 27977636413452.

The previous prime is 27977636413421. The next prime is 27977636413457. The reversal of 27977636413453 is 35431463677972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25776558551844 + 2201077861609 = 5077062^2 + 1483603^2 .

It is a cyclic number.

It is not a de Polignac number, because 27977636413453 - 2⁵ = 27977636413421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27977636413457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13988818206726 + 13988818206727.

It is an arithmetic number, because the mean of its divisors is an integer number (13988818206727).

Almost surely, 2^{27977636413453} is an apocalyptic number.

It is an amenable number.

27977636413453 is a deficient number, since it is larger than the sum of its proper divisors (1).

27977636413453 is an equidigital number, since it uses as much as digits as its factorization.

27977636413453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480090240, while the sum is 67.

The spelling of 27977636413453 in words is "twenty-seven trillion, nine hundred seventy-seven billion, six hundred thirty-six million, four hundred thirteen thousand, four hundred fifty-three".