12717787514 has 16 divisors (see below), whose sum is σ = 19126745352. Its totient is φ = 6342228288.

The previous prime is 12717787501. The next prime is 12717787529. The reversal of 12717787514 is 41578771721.

It can be written as a sum of positive squares in 4 ways, for example, as 9332526025 + 3385261489 = 96605^2 + 58183^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318172 + ... + 1327784.

Almost surely, 2^12717787514 is an apocalyptic number.

12717787514 is a deficient number, since it is larger than the sum of its proper divisors (6408957838).

12717787514 is a wasteful number, since it uses less digits than its factorization.

12717787514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11281.

The product of its digits is 768320, while the sum is 50.

The spelling of 12717787514 in words is "twelve billion, seven hundred seventeen million, seven hundred eighty-seven thousand, five hundred fourteen".