12950143849 has 4 divisors (see below), whose sum is σ = 12950436240. Its totient is φ = 12949851460.

The previous prime is 12950143841. The next prime is 12950143883. The reversal of 12950143849 is 94834105921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94834105921 = 109 ⋅870037669.

It is a cyclic number.

It is not a de Polignac number, because 12950143849 - 2³ = 12950143841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12950143799 and 12950143808.

It is not an unprimeable number, because it can be changed into a prime (12950143841) 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, 64567 + ... + 173404.

It is an arithmetic number, because the mean of its divisors is an integer number (3237609060).

Almost surely, 2^12950143849 is an apocalyptic number.

It is an amenable number.

12950143849 is a deficient number, since it is larger than the sum of its proper divisors (292391).

12950143849 is an equidigital number, since it uses as much as digits as its factorization.

12950143849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292390.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 12950143849 in words is "twelve billion, nine hundred fifty million, one hundred forty-three thousand, eight hundred forty-nine".