13247870889677 has 2 divisors, whose sum is σ = 13247870889678. Its totient is φ = 13247870889676.

The previous prime is 13247870889599. The next prime is 13247870889679. The reversal of 13247870889677 is 77698807874231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13069338443716 + 178532445961 = 3615154^2 + 422531^2 .

It is a cyclic number.

It is not a de Polignac number, because 13247870889677 - 2²⁴ = 13247854112461 is a prime.

Together with 13247870889679, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13247870889598 and 13247870889607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13247870889679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6623935444838 + 6623935444839.

It is an arithmetic number, because the mean of its divisors is an integer number (6623935444839).

Almost surely, 2^{13247870889677} is an apocalyptic number.

It is an amenable number.

13247870889677 is a deficient number, since it is larger than the sum of its proper divisors (1).

13247870889677 is an equidigital number, since it uses as much as digits as its factorization.

13247870889677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1593188352, while the sum is 77.

The spelling of 13247870889677 in words is "thirteen trillion, two hundred forty-seven billion, eight hundred seventy million, eight hundred eighty-nine thousand, six hundred seventy-seven".