13971528355265 has 32 divisors (see below), whose sum is σ = 18159320793600. Its totient is φ = 10258136582400.

The previous prime is 13971528355259. The next prime is 13971528355283. The reversal of 13971528355265 is 56255382517931.

It is not a de Polignac number, because 13971528355265 - 2²⁴ = 13971511578049 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13971528355198 and 13971528355207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74242040 + ... + 74429990.

It is an arithmetic number, because the mean of its divisors is an integer number (567478774800).

Almost surely, 2^{13971528355265} is an apocalyptic number.

It is an amenable number.

13971528355265 is a deficient number, since it is larger than the sum of its proper divisors (4187792438335).

13971528355265 is a wasteful number, since it uses less digits than its factorization.

13971528355265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194537.

The product of its digits is 68040000, while the sum is 62.

The spelling of 13971528355265 in words is "thirteen trillion, nine hundred seventy-one billion, five hundred twenty-eight million, three hundred fifty-five thousand, two hundred sixty-five".