27877854013 has 2 divisors, whose sum is σ = 27877854014. Its totient is φ = 27877854012.

The previous prime is 27877853929. The next prime is 27877854047. The reversal of 27877854013 is 31045877872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20636184409 + 7241669604 = 143653^2 + 85098^2 .

It is a cyclic number.

It is not a de Polignac number, because 27877854013 - 2¹⁷ = 27877722941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27877854113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13938927006 + 13938927007.

It is an arithmetic number, because the mean of its divisors is an integer number (13938927007).

Almost surely, 2^27877854013 is an apocalyptic number.

It is an amenable number.

27877854013 is a deficient number, since it is larger than the sum of its proper divisors (1).

27877854013 is an equidigital number, since it uses as much as digits as its factorization.

27877854013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 27877854013 in words is "twenty-seven billion, eight hundred seventy-seven million, eight hundred fifty-four thousand, thirteen".