12987170059 has 4 divisors (see below), whose sum is σ = 13048720840. Its totient is φ = 12925619280.

The previous prime is 12987170033. The next prime is 12987170069. The reversal of 12987170059 is 95007178921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12987170059 - 2⁷ = 12987169931 is a prime.

It is a super-2 number, since 2×12987170059² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12987169994 and 12987170021.

It is not an unprimeable number, because it can be changed into a prime (12987170069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30775074 + ... + 30775495.

It is an arithmetic number, because the mean of its divisors is an integer number (3262180210).

Almost surely, 2^12987170059 is an apocalyptic number.

12987170059 is a deficient number, since it is larger than the sum of its proper divisors (61550781).

12987170059 is an equidigital number, since it uses as much as digits as its factorization.

12987170059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61550780.

The product of its (nonzero) digits is 317520, while the sum is 49.

The spelling of 12987170059 in words is "twelve billion, nine hundred eighty-seven million, one hundred seventy thousand, fifty-nine".