12629692621 has 36 divisors (see below), whose sum is σ = 15942573504. Its totient is φ = 9971488800.

The previous prime is 12629692613. The next prime is 12629692627.

12629692621 is nontrivially palindromic in base 10.

12629692621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12629692621 - 2³ = 12629692613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12629692627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4727116 + ... + 4729786.

It is an arithmetic number, because the mean of its divisors is an integer number (442849264).

Almost surely, 2^12629692621 is an apocalyptic number.

It is an amenable number.

12629692621 is a deficient number, since it is larger than the sum of its proper divisors (3312880883).

12629692621 is a wasteful number, since it uses less digits than its factorization.

12629692621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282 (or 3262 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The spelling of 12629692621 in words is "twelve billion, six hundred twenty-nine million, six hundred ninety-two thousand, six hundred twenty-one".