249958859942 has 24 divisors (see below), whose sum is σ = 412148866248. Its totient is φ = 113610326720.

The previous prime is 249958859939. The next prime is 249958859947.

249958859942 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 249958859942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249958859947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5894078 + ... + 5936334.

It is an arithmetic number, because the mean of its divisors is an integer number (17172869427).

Almost surely, 2^249958859942 is an apocalyptic number.

249958859942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

249958859942 is a deficient number, since it is larger than the sum of its proper divisors (162190006306).

249958859942 is a wasteful number, since it uses less digits than its factorization.

249958859942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66724 (or 66713 counting only the distinct ones).

The product of its digits is 671846400, while the sum is 74.

The spelling of 249958859942 in words is "two hundred forty-nine billion, nine hundred fifty-eight million, eight hundred fifty-nine thousand, nine hundred forty-two".