13629117988 has 6 divisors (see below), whose sum is σ = 23850956486. Its totient is φ = 6814558992.

The previous prime is 13629117979. The next prime is 13629117989. The reversal of 13629117988 is 88971192631.

It is a happy number.

13629117988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9110320704 + 4518797284 = 95448^2 + 67222^2 .

It is not an unprimeable number, because it can be changed into a prime (13629117989) 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 as a sum of consecutive naturals, namely, 1703639745 + ... + 1703639752.

Almost surely, 2^13629117988 is an apocalyptic number.

It is an amenable number.

13629117988 is a deficient number, since it is larger than the sum of its proper divisors (10221838498).

13629117988 is a wasteful number, since it uses less digits than its factorization.

13629117988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407279501 (or 3407279499 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 55.

The spelling of 13629117988 in words is "thirteen billion, six hundred twenty-nine million, one hundred seventeen thousand, nine hundred eighty-eight".