12959999999 has 8 divisors (see below), whose sum is σ = 13009798032. Its totient is φ = 12910230720.

The previous prime is 12959999989. The next prime is 12960000013. The reversal of 12959999999 is 99999995921.

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 12959999999 - 2⁸ = 12959999743 is a prime.

It is a Duffinian number.

12959999999 is a modest number, since divided by 999999 gives 12959 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12959999909) 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, 1433417 + ... + 1442429.

It is an arithmetic number, because the mean of its divisors is an integer number (1626224754).

Almost surely, 2^12959999999 is an apocalyptic number.

12959999999 is a deficient number, since it is larger than the sum of its proper divisors (49798033).

12959999999 is an equidigital number, since it uses as much as digits as its factorization.

12959999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14377.

The product of its digits is 430467210, while the sum is 80.

The spelling of 12959999999 in words is "twelve billion, nine hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".