13257294273 has 32 divisors (see below), whose sum is σ = 20020801920. Its totient is φ = 8667881280.

The previous prime is 13257294247. The next prime is 13257294299. The reversal of 13257294273 is 37249275231.

13257294273 is a `hidden beast` number, since 1 + 3 + 2 + 572 + 9 + 4 + 2 + 73 = 666.

It is an interprime number because it is at equal distance from previous prime (13257294247) and next prime (13257294299).

It is not a de Polignac number, because 13257294273 - 2⁶ = 13257294209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13257254273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 559911 + ... + 583107.

It is an arithmetic number, because the mean of its divisors is an integer number (625650060).

Almost surely, 2^13257294273 is an apocalyptic number.

It is an amenable number.

13257294273 is a deficient number, since it is larger than the sum of its proper divisors (6763507647).

13257294273 is a wasteful number, since it uses less digits than its factorization.

13257294273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23614 (or 23608 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The spelling of 13257294273 in words is "thirteen billion, two hundred fifty-seven million, two hundred ninety-four thousand, two hundred seventy-three".