268391259413 has 4 divisors (see below), whose sum is σ = 268393667328. Its totient is φ = 268388851500.

The previous prime is 268391259407. The next prime is 268391259419. The reversal of 268391259413 is 314952193862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (268391259407) and next prime (268391259419).

It is a cyclic number.

It is not a de Polignac number, because 268391259413 - 2¹⁰ = 268391258389 is a prime.

It is a super-2 number, since 2×268391259413² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268391259419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028213 + ... + 1262538.

It is an arithmetic number, because the mean of its divisors is an integer number (67098416832).

Almost surely, 2^268391259413 is an apocalyptic number.

It is an amenable number.

268391259413 is a deficient number, since it is larger than the sum of its proper divisors (2407915).

268391259413 is a wasteful number, since it uses less digits than its factorization.

268391259413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407914.

The product of its digits is 2799360, while the sum is 53.

The spelling of 268391259413 in words is "two hundred sixty-eight billion, three hundred ninety-one million, two hundred fifty-nine thousand, four hundred thirteen".