12620972734 has 8 divisors (see below), whose sum is σ = 18935476560. Its totient is φ = 6309147216.

The previous prime is 12620972731. The next prime is 12620972747. The reversal of 12620972734 is 43727902621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620972731) 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, 657754 + ... + 676669.

It is an arithmetic number, because the mean of its divisors is an integer number (2366934570).

Almost surely, 2^12620972734 is an apocalyptic number.

12620972734 is a deficient number, since it is larger than the sum of its proper divisors (6314503826).

12620972734 is a wasteful number, since it uses less digits than its factorization.

12620972734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339154.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 12620972734 in words is "twelve billion, six hundred twenty million, nine hundred seventy-two thousand, seven hundred thirty-four".