13978525265 has 16 divisors (see below), whose sum is σ = 16929755136. Its totient is φ = 11079528000.

The previous prime is 13978525243. The next prime is 13978525273. The reversal of 13978525265 is 56252587931.

13978525265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13978525265 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264995 + ... + 313335.

It is an arithmetic number, because the mean of its divisors is an integer number (1058109696).

Almost surely, 2^13978525265 is an apocalyptic number.

It is an amenable number.

13978525265 is a deficient number, since it is larger than the sum of its proper divisors (2951229871).

13978525265 is a wasteful number, since it uses less digits than its factorization.

13978525265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48880.

The product of its digits is 4536000, while the sum is 53.

The spelling of 13978525265 in words is "thirteen billion, nine hundred seventy-eight million, five hundred twenty-five thousand, two hundred sixty-five".