249005793243 has 16 divisors (see below), whose sum is σ = 341626792320. Its totient is φ = 161237463744.

The previous prime is 249005793221. The next prime is 249005793269. The reversal of 249005793243 is 342397500942.

It is not a de Polignac number, because 249005793243 - 2⁹ = 249005792731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249005793192 and 249005793201.

It is not an unprimeable number, because it can be changed into a prime (249005793143) 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, 5368746 + ... + 5414927.

It is an arithmetic number, because the mean of its divisors is an integer number (21351674520).

Almost surely, 2^249005793243 is an apocalyptic number.

249005793243 is a deficient number, since it is larger than the sum of its proper divisors (92620999077).

249005793243 is a wasteful number, since it uses less digits than its factorization.

249005793243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10783898.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 249005793243 in words is "two hundred forty-nine billion, five million, seven hundred ninety-three thousand, two hundred forty-three".