249388586268 has 12 divisors (see below), whose sum is σ = 581906701320. Its totient is φ = 83129528752.

The previous prime is 249388586243. The next prime is 249388586287. The reversal of 249388586268 is 862685883942.

249388586268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10391191083 + ... + 10391191106.

It is an arithmetic number, because the mean of its divisors is an integer number (48492225110).

Almost surely, 2^249388586268 is an apocalyptic number.

It is an amenable number.

249388586268 is an abundant number, since it is smaller than the sum of its proper divisors (332518115052).

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

249388586268 is a wasteful number, since it uses less digits than its factorization.

249388586268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20782382196 (or 20782382194 counting only the distinct ones).

The product of its digits is 318504960, while the sum is 69.

The spelling of 249388586268 in words is "two hundred forty-nine billion, three hundred eighty-eight million, five hundred eighty-six thousand, two hundred sixty-eight".