13879821722 has 8 divisors (see below), whose sum is σ = 22421250516. Its totient is φ = 6406071552.

The previous prime is 13879821667. The next prime is 13879821733. The reversal of 13879821722 is 22712897831.

It can be written as a sum of positive squares in 2 ways, for example, as 13865298001 + 14523721 = 117751^2 + 3811^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266919623 + ... + 266919674.

Almost surely, 2^13879821722 is an apocalyptic number.

13879821722 is a deficient number, since it is larger than the sum of its proper divisors (8541428794).

13879821722 is a wasteful number, since it uses less digits than its factorization.

13879821722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533839312.

The product of its digits is 677376, while the sum is 50.

The spelling of 13879821722 in words is "thirteen billion, eight hundred seventy-nine million, eight hundred twenty-one thousand, seven hundred twenty-two".