12952739831 has 4 divisors (see below), whose sum is σ = 13634463000. Its totient is φ = 12271016664.

The previous prime is 12952739809. The next prime is 12952739837. The reversal of 12952739831 is 13893725921.

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 12952739831 - 2¹⁸ = 12952477687 is a prime.

It is a super-2 number, since 2×12952739831² (a number of 21 digits) contains 22 as substring.

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 12952739831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12952739837) 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, 340861556 + ... + 340861593.

It is an arithmetic number, because the mean of its divisors is an integer number (3408615750).

Almost surely, 2^12952739831 is an apocalyptic number.

12952739831 is a deficient number, since it is larger than the sum of its proper divisors (681723169).

12952739831 is an equidigital number, since it uses as much as digits as its factorization.

12952739831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681723168.

The product of its digits is 816480, while the sum is 50.

The spelling of 12952739831 in words is "twelve billion, nine hundred fifty-two million, seven hundred thirty-nine thousand, eight hundred thirty-one".