12698912587 has 8 divisors (see below), whose sum is σ = 12775453056. Its totient is φ = 12622408512.

The previous prime is 12698912543. The next prime is 12698912621. The reversal of 12698912587 is 78521989621.

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

It is a cyclic number.

It is not a de Polignac number, because 12698912587 - 2⁷ = 12698912459 is a prime.

It is a super-2 number, since 2×12698912587² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12698912987) 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, 1069638 + ... + 1081444.

It is an arithmetic number, because the mean of its divisors is an integer number (1596931632).

Almost surely, 2^12698912587 is an apocalyptic number.

12698912587 is a deficient number, since it is larger than the sum of its proper divisors (76540469).

12698912587 is a wasteful number, since it uses less digits than its factorization.

12698912587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18197.

The product of its digits is 4354560, while the sum is 58.

The spelling of 12698912587 in words is "twelve billion, six hundred ninety-eight million, nine hundred twelve thousand, five hundred eighty-seven".