13193279044 has 81 divisors (see below), whose sum is σ = 26646729151. Its totient is φ = 5710938640.

The previous prime is 13193279023. The next prime is 13193279069. The reversal of 13193279044 is 44097239131.

The square root of 13193279044 is 114862.

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

It is a super-2 number, since 2×13193279044² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 58120059 + ... + 58120285.

Almost surely, 2^13193279044 is an apocalyptic number.

13193279044 is the 114862-nd square number.

It is an amenable number.

13193279044 is an abundant number, since it is smaller than the sum of its proper divisors (13453450107).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13193279044 is a wasteful number, since it uses less digits than its factorization.

13193279044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 13193279044 in words is "thirteen billion, one hundred ninety-three million, two hundred seventy-nine thousand, forty-four".