268249842431 has 4 divisors (see below), whose sum is σ = 268457628264. Its totient is φ = 268042056600.

The previous prime is 268249842401. The next prime is 268249842481. The reversal of 268249842431 is 134248942862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268249842431 - 2³⁴ = 251069973247 is a prime.

It is a super-2 number, since 2×268249842431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268249842401) 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, 103890980 + ... + 103893561.

It is an arithmetic number, because the mean of its divisors is an integer number (67114407066).

Almost surely, 2^268249842431 is an apocalyptic number.

268249842431 is a deficient number, since it is larger than the sum of its proper divisors (207785833).

268249842431 is a wasteful number, since it uses less digits than its factorization.

268249842431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207785832.

The product of its digits is 5308416, while the sum is 53.

The spelling of 268249842431 in words is "two hundred sixty-eight billion, two hundred forty-nine million, eight hundred forty-two thousand, four hundred thirty-one".