12921741634 has 16 divisors (see below), whose sum is σ = 19530201600. Its totient is φ = 6411704224.

The previous prime is 12921741629. The next prime is 12921741653. The reversal of 12921741634 is 43614712921.

12921741634 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277007 + ... + 1287085.

It is an arithmetic number, because the mean of its divisors is an integer number (1220637600).

Almost surely, 2^12921741634 is an apocalyptic number.

12921741634 is a deficient number, since it is larger than the sum of its proper divisors (6608459966).

12921741634 is a wasteful number, since it uses less digits than its factorization.

12921741634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14897.

The product of its digits is 72576, while the sum is 40.

The spelling of 12921741634 in words is "twelve billion, nine hundred twenty-one million, seven hundred forty-one thousand, six hundred thirty-four".