249461441868 has 48 divisors (see below), whose sum is σ = 612761667840. Its totient is φ = 78770952000.

The previous prime is 249461441843. The next prime is 249461441951. The reversal of 249461441868 is 868144164942.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3372238 + ... + 3445418.

It is an arithmetic number, because the mean of its divisors is an integer number (12765868080).

Almost surely, 2^249461441868 is an apocalyptic number.

It is an amenable number.

249461441868 is an abundant number, since it is smaller than the sum of its proper divisors (363300225972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249461441868 is a wasteful number, since it uses less digits than its factorization.

249461441868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88158 (or 88156 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 57.

The spelling of 249461441868 in words is "two hundred forty-nine billion, four hundred sixty-one million, four hundred forty-one thousand, eight hundred sixty-eight".