13405215239 has 8 divisors (see below), whose sum is σ = 14443345392. Its totient is φ = 12368079360.

The previous prime is 13405215233. The next prime is 13405215253. The reversal of 13405215239 is 93251250431.

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

It is not a de Polignac number, because 13405215239 - 2³² = 9110247943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13405215199 and 13405215208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405215233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220442 + ... + 274599.

It is an arithmetic number, because the mean of its divisors is an integer number (1805418174).

Almost surely, 2^13405215239 is an apocalyptic number.

13405215239 is a deficient number, since it is larger than the sum of its proper divisors (1038130153).

13405215239 is a wasteful number, since it uses less digits than its factorization.

13405215239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497137.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 13405215239 in words is "thirteen billion, four hundred five million, two hundred fifteen thousand, two hundred thirty-nine".