12950261999 has 4 divisors (see below), whose sum is σ = 13106289336. Its totient is φ = 12794234664.

The previous prime is 12950261963. The next prime is 12950262001. The reversal of 12950261999 is 99916205921.

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 12950261999 - 2²⁴ = 12933484783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12950261999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12950261099) 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, 78013544 + ... + 78013709.

It is an arithmetic number, because the mean of its divisors is an integer number (3276572334).

Almost surely, 2^12950261999 is an apocalyptic number.

12950261999 is a deficient number, since it is larger than the sum of its proper divisors (156027337).

12950261999 is an equidigital number, since it uses as much as digits as its factorization.

12950261999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156027336.

The product of its (nonzero) digits is 787320, while the sum is 53.

The spelling of 12950261999 in words is "twelve billion, nine hundred fifty million, two hundred sixty-one thousand, nine hundred ninety-nine".