13797993139225 has 9 divisors (see below), whose sum is σ = 17109534522973. Its totient is φ = 11038379653120.

The previous prime is 13797993139219. The next prime is 13797993139253. The reversal of 13797993139225 is 52293139979731.

The square root of 13797993139225 is 3714565.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2393837123209 + 11404156016016 = 1547203^2 + 3377004^2 .

It is not a de Polignac number, because 13797993139225 - 2⁵ = 13797993139193 is a prime.

It is a super-2 number, since 2×13797993139225² (a number of 27 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 8 ways as a sum of consecutive naturals, for example, 18201369 + ... + 18944281.

Almost surely, 2^{13797993139225} is an apocalyptic number.

13797993139225 is the 3714565-th square number.

13797993139225 is the 1857283-rd centered octagonal number.

It is an amenable number.

13797993139225 is a deficient number, since it is larger than the sum of its proper divisors (3311541383748).

13797993139225 is an frugal number, since it uses more digits than its factorization.

13797993139225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485836 (or 742918 counting only the distinct ones).

The product of its digits is 173604060, while the sum is 70.

The spelling of 13797993139225 in words is "thirteen trillion, seven hundred ninety-seven billion, nine hundred ninety-three million, one hundred thirty-nine thousand, two hundred twenty-five".