13409218402 has 8 divisors (see below), whose sum is σ = 20115697500. Its totient is φ = 6703985904.

The previous prime is 13409218397. The next prime is 13409218411. The reversal of 13409218402 is 20481290431.

13409218402 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 2 ways, for example, as 12212681121 + 1196537281 = 110511^2 + 34591^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 284277 + ... + 328072.

Almost surely, 2^13409218402 is an apocalyptic number.

13409218402 is a deficient number, since it is larger than the sum of its proper divisors (6706479098).

13409218402 is a wasteful number, since it uses less digits than its factorization.

13409218402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623300.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 13409218402 in words is "thirteen billion, four hundred nine million, two hundred eighteen thousand, four hundred two".