13285280257 has 8 divisors (see below), whose sum is σ = 13361975816. Its totient is φ = 13208666112.

The previous prime is 13285280251. The next prime is 13285280291. The reversal of 13285280257 is 75208258231.

It can be written as a sum of positive squares in 4 ways, for example, as 7096896 + 13278183361 = 2664^2 + 115231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13285280257 - 2¹⁵ = 13285247489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13285280251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323593 + ... + 362329.

It is an arithmetic number, because the mean of its divisors is an integer number (1670246977).

Almost surely, 2^13285280257 is an apocalyptic number.

It is an amenable number.

13285280257 is a deficient number, since it is larger than the sum of its proper divisors (76695559).

13285280257 is a wasteful number, since it uses less digits than its factorization.

13285280257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40707.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 13285280257 in words is "thirteen billion, two hundred eighty-five million, two hundred eighty thousand, two hundred fifty-seven".