13057688321287 has 8 divisors (see below), whose sum is σ = 13155933379680. Its totient is φ = 12959730110880.

The previous prime is 13057688321201. The next prime is 13057688321303. The reversal of 13057688321287 is 78212388675031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13057688321287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057688391287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71620612 + ... + 71802697.

It is an arithmetic number, because the mean of its divisors is an integer number (1644491672460).

Almost surely, 2^{13057688321287} is an apocalyptic number.

13057688321287 is a deficient number, since it is larger than the sum of its proper divisors (98245058393).

13057688321287 is a wasteful number, since it uses less digits than its factorization.

13057688321287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143423993.

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 13057688321287 in words is "thirteen trillion, fifty-seven billion, six hundred eighty-eight million, three hundred twenty-one thousand, two hundred eighty-seven".