13621871342 has 16 divisors (see below), whose sum is σ = 20618939232. Its totient is φ = 6748922880.

The previous prime is 13621871317. The next prime is 13621871453. The reversal of 13621871342 is 24317812631.

It is a junction number, because it is equal to n+sod(n) for n = 13621871296 and 13621871305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733342 + ... + 1741182.

It is an arithmetic number, because the mean of its divisors is an integer number (1288683702).

Almost surely, 2^13621871342 is an apocalyptic number.

13621871342 is a deficient number, since it is larger than the sum of its proper divisors (6997067890).

13621871342 is a wasteful number, since it uses less digits than its factorization.

13621871342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15643.

The product of its digits is 48384, while the sum is 38.

The spelling of 13621871342 in words is "thirteen billion, six hundred twenty-one million, eight hundred seventy-one thousand, three hundred forty-two".