249984291799 has 8 divisors (see below), whose sum is σ = 272718144000. Its totient is φ = 227251774200.

The previous prime is 249984291787. The next prime is 249984291833. The reversal of 249984291799 is 997192489942.

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

It is a de Polignac number, because none of the positive numbers 2^k-249984291799 is a prime.

It is a super-2 number, since 2×249984291799² (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 (249984291749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80344 + ... + 711634.

It is an arithmetic number, because the mean of its divisors is an integer number (34089768000).

Almost surely, 2^249984291799 is an apocalyptic number.

249984291799 is a deficient number, since it is larger than the sum of its proper divisors (22733852201).

249984291799 is a wasteful number, since it uses less digits than its factorization.

249984291799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667301.

The product of its digits is 211631616, while the sum is 73.

The spelling of 249984291799 in words is "two hundred forty-nine billion, nine hundred eighty-four million, two hundred ninety-one thousand, seven hundred ninety-nine".