12889324937 has 4 divisors (see below), whose sum is σ = 13567710480. Its totient is φ = 12210939396.

The previous prime is 12889324933. The next prime is 12889324957. The reversal of 12889324937 is 73942398821.

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.

It is a cyclic number.

It is not a de Polignac number, because 12889324937 - 2² = 12889324933 is a prime.

It is a super-2 number, since 2×12889324937² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12889324933) 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, 339192743 + ... + 339192780.

It is an arithmetic number, because the mean of its divisors is an integer number (3391927620).

Almost surely, 2^12889324937 is an apocalyptic number.

It is an amenable number.

12889324937 is a deficient number, since it is larger than the sum of its proper divisors (678385543).

12889324937 is an equidigital number, since it uses as much as digits as its factorization.

12889324937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678385542.

The product of its digits is 5225472, while the sum is 56.

The spelling of 12889324937 in words is "twelve billion, eight hundred eighty-nine million, three hundred twenty-four thousand, nine hundred thirty-seven".