13087889407 has 2 divisors, whose sum is σ = 13087889408. Its totient is φ = 13087889406.

The previous prime is 13087889327. The next prime is 13087889431. The reversal of 13087889407 is 70498878031.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70498878031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13087889407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13087889207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6543944703 + 6543944704.

It is an arithmetic number, because the mean of its divisors is an integer number (6543944704).

Almost surely, 2^13087889407 is an apocalyptic number.

13087889407 is a deficient number, since it is larger than the sum of its proper divisors (1).

13087889407 is an equidigital number, since it uses as much as digits as its factorization.

13087889407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 13087889407 in words is "thirteen billion, eighty-seven million, eight hundred eighty-nine thousand, four hundred seven".