13473553961956 has 27 divisors (see below), whose sum is σ = 25917260167267. Its totient is φ = 6124306003640.

The previous prime is 13473553961897. The next prime is 13473553961981. The reversal of 13473553961956 is 65916935537431.

The square root of 13473553961956 is 3670634.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13473553961891 and 13473553961900.

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, 80670525 + ... + 80837371.

Almost surely, 2^{13473553961956} is an apocalyptic number.

13473553961956 is the 3670634-th square number.

It is an amenable number.

13473553961956 is a deficient number, since it is larger than the sum of its proper divisors (12443706205311).

13473553961956 is an frugal number, since it uses more digits than its factorization.

13473553961956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333720 (or 166860 counting only the distinct ones).

The product of its digits is 275562000, while the sum is 67.

The spelling of 13473553961956 in words is "thirteen trillion, four hundred seventy-three billion, five hundred fifty-three million, nine hundred sixty-one thousand, nine hundred fifty-six".