13988570677 has 2 divisors, whose sum is σ = 13988570678. Its totient is φ = 13988570676.

The previous prime is 13988570669. The next prime is 13988570707. The reversal of 13988570677 is 77607588931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11136369841 + 2852200836 = 105529^2 + 53406^2 .

It is a cyclic number.

It is not a de Polignac number, because 13988570677 - 2³ = 13988570669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13988570777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6994285338 + 6994285339.

It is an arithmetic number, because the mean of its divisors is an integer number (6994285339).

Almost surely, 2^13988570677 is an apocalyptic number.

It is an amenable number.

13988570677 is a deficient number, since it is larger than the sum of its proper divisors (1).

13988570677 is an equidigital number, since it uses as much as digits as its factorization.

13988570677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17781120, while the sum is 61.

The spelling of 13988570677 in words is "thirteen billion, nine hundred eighty-eight million, five hundred seventy thousand, six hundred seventy-seven".