249713968269 has 16 divisors (see below), whose sum is σ = 363909542400. Its totient is φ = 151628974080.

The previous prime is 249713968261. The next prime is 249713968289. The reversal of 249713968269 is 962869317942.

It is not a de Polignac number, because 249713968269 - 2³ = 249713968261 is a prime.

It is a super-2 number, since 2×249713968269² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249713968261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78971844 + ... + 78975005.

It is an arithmetic number, because the mean of its divisors is an integer number (22744346400).

Almost surely, 2^249713968269 is an apocalyptic number.

It is an amenable number.

249713968269 is a deficient number, since it is larger than the sum of its proper divisors (114195574131).

249713968269 is a wasteful number, since it uses less digits than its factorization.

249713968269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157946900.

The product of its digits is 70543872, while the sum is 66.

The spelling of 249713968269 in words is "two hundred forty-nine billion, seven hundred thirteen million, nine hundred sixty-eight thousand, two hundred sixty-nine".