13515130718387 has 2 divisors, whose sum is σ = 13515130718388. Its totient is φ = 13515130718386.

The previous prime is 13515130718347. The next prime is 13515130718461. The reversal of 13515130718387 is 78381703151531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13515130718387 - 2²² = 13515126524083 is a prime.

It is not a weakly prime, because it can be changed into another prime (13515130718347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6757565359193 + 6757565359194.

It is an arithmetic number, because the mean of its divisors is an integer number (6757565359194).

Almost surely, 2^{13515130718387} is an apocalyptic number.

13515130718387 is a deficient number, since it is larger than the sum of its proper divisors (1).

13515130718387 is an equidigital number, since it uses as much as digits as its factorization.

13515130718387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 53.

The spelling of 13515130718387 in words is "thirteen trillion, five hundred fifteen billion, one hundred thirty million, seven hundred eighteen thousand, three hundred eighty-seven".