249839938942 has 8 divisors (see below), whose sum is σ = 408828991032. Its totient is φ = 113563608600.

The previous prime is 249839938937. The next prime is 249839938951.

249839938942 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5678180409 + ... + 5678180452.

It is an arithmetic number, because the mean of its divisors is an integer number (51103623879).

Almost surely, 2^249839938942 is an apocalyptic number.

249839938942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

249839938942 is a deficient number, since it is larger than the sum of its proper divisors (158989052090).

249839938942 is a wasteful number, since it uses less digits than its factorization.

249839938942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11356360874.

The product of its digits is 241864704, while the sum is 70.

The spelling of 249839938942 in words is "two hundred forty-nine billion, eight hundred thirty-nine million, nine hundred thirty-eight thousand, nine hundred forty-two".