13477808987 has 2 divisors, whose sum is σ = 13477808988. Its totient is φ = 13477808986.

The previous prime is 13477808891. The next prime is 13477808989. The reversal of 13477808987 is 78980877431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13477808987 - 2⁸ = 13477808731 is a prime.

Together with 13477808989, 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 (13477808989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6738904493 + 6738904494.

It is an arithmetic number, because the mean of its divisors is an integer number (6738904494).

Almost surely, 2^13477808987 is an apocalyptic number.

13477808987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13477808987 is an equidigital number, since it uses as much as digits as its factorization.

13477808987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18966528, while the sum is 62.

The spelling of 13477808987 in words is "thirteen billion, four hundred seventy-seven million, eight hundred eight thousand, nine hundred eighty-seven".