13739121796 has 27 divisors (see below), whose sum is σ = 24321906021. Its totient is φ = 6790910304.

The previous prime is 13739121793. The next prime is 13739121811. The reversal of 13739121796 is 69712193731.

The square root of 13739121796 is 117214.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2264427396 + 11474694400 = 47586^2 + 107120^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13739121791) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24145800 + ... + 24146368.

Almost surely, 2^13739121796 is an apocalyptic number.

13739121796 is the 117214-th square number.

It is an amenable number.

13739121796 is a deficient number, since it is larger than the sum of its proper divisors (10582784225).

13739121796 is an frugal number, since it uses more digits than its factorization.

13739121796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 674 counting only the distinct ones).

The product of its digits is 428652, while the sum is 49.

Multiplying 13739121796 by its sum of digits (49), we get a square (673216968004 = 820498²).

The spelling of 13739121796 in words is "thirteen billion, seven hundred thirty-nine million, one hundred twenty-one thousand, seven hundred ninety-six".