12699589439 has 8 divisors (see below), whose sum is σ = 13045298160. Its totient is φ = 12354011136.

The previous prime is 12699589429. The next prime is 12699589471. The reversal of 12699589439 is 93498599621.

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 12699589439 - 2⁴ = 12699589423 is a prime.

It is a super-2 number, since 2×12699589439² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12699589429) 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, 184127 + ... + 243519.

It is an arithmetic number, because the mean of its divisors is an integer number (1630662270).

Almost surely, 2^12699589439 is an apocalyptic number.

12699589439 is a deficient number, since it is larger than the sum of its proper divisors (345708721).

12699589439 is an equidigital number, since it uses as much as digits as its factorization.

12699589439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65209.

The product of its digits is 37791360, while the sum is 65.

The spelling of 12699589439 in words is "twelve billion, six hundred ninety-nine million, five hundred eighty-nine thousand, four hundred thirty-nine".