13313319570787 has 2 divisors, whose sum is σ = 13313319570788. Its totient is φ = 13313319570786.

The previous prime is 13313319570781. The next prime is 13313319570833. The reversal of 13313319570787 is 78707591331331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13313319570787 - 2³¹ = 13311172087139 is a prime.

It is not a weakly prime, because it can be changed into another prime (13313319570781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656659785393 + 6656659785394.

It is an arithmetic number, because the mean of its divisors is an integer number (6656659785394).

Almost surely, 2^{13313319570787} is an apocalyptic number.

13313319570787 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313319570787 is an equidigital number, since it uses as much as digits as its factorization.

13313319570787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10001880, while the sum is 58.

The spelling of 13313319570787 in words is "thirteen trillion, three hundred thirteen billion, three hundred nineteen million, five hundred seventy thousand, seven hundred eighty-seven".