13987418057 has 2 divisors, whose sum is σ = 13987418058. Its totient is φ = 13987418056.

The previous prime is 13987417949. The next prime is 13987418059. The reversal of 13987418057 is 75081478931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13351571401 + 635846656 = 115549^2 + 25216^2 .

It is a cyclic number.

It is not a de Polignac number, because 13987418057 - 2¹² = 13987413961 is a prime.

Together with 13987418059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13987418059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6993709028 + 6993709029.

It is an arithmetic number, because the mean of its divisors is an integer number (6993709029).

Almost surely, 2^13987418057 is an apocalyptic number.

It is an amenable number.

13987418057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13987418057 is an equidigital number, since it uses as much as digits as its factorization.

13987418057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 13987418057 in words is "thirteen billion, nine hundred eighty-seven million, four hundred eighteen thousand, fifty-seven".