13629998417 has 12 divisors (see below), whose sum is σ = 16115230836. Its totient is φ = 11491331040.

The previous prime is 13629998399. The next prime is 13629998429. The reversal of 13629998417 is 71489992631.

It can be written as a sum of positive squares in 2 ways, for example, as 3373170241 + 10256828176 = 58079^2 + 101276^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13629998417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13629992417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2277038 + ... + 2283015.

It is an arithmetic number, because the mean of its divisors is an integer number (1342935903).

Almost surely, 2^13629998417 is an apocalyptic number.

It is an amenable number.

13629998417 is a deficient number, since it is larger than the sum of its proper divisors (2485232419).

13629998417 is an equidigital number, since it uses as much as digits as its factorization.

13629998417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560128 (or 4560121 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 59.

The spelling of 13629998417 in words is "thirteen billion, six hundred twenty-nine million, nine hundred ninety-eight thousand, four hundred seventeen".