13970191979584 has 21 divisors (see below), whose sum is σ = 27722159045157. Its totient is φ = 6985081039104.

The previous prime is 13970191979567. The next prime is 13970191979603. The reversal of 13970191979584 is 48597919107931.

The square root of 13970191979584 is 3737672.

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., 12163855979584 + 1806336000000 = 3487672^2 + 1344000^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29667772 + ... + 30134980.

Almost surely, 2^{13970191979584} is an apocalyptic number.

13970191979584 is the 3737672-nd square number.

It is an amenable number.

13970191979584 is a deficient number, since it is larger than the sum of its proper divisors (13751967065573).

13970191979584 is an frugal number, since it uses more digits than its factorization.

13970191979584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934430 (or 467211 counting only the distinct ones).

The product of its (nonzero) digits is 154314720, while the sum is 73.

The spelling of 13970191979584 in words is "thirteen trillion, nine hundred seventy billion, one hundred ninety-one million, nine hundred seventy-nine thousand, five hundred eighty-four".