249902085196830 has 96 divisors (see below), whose sum is σ = 670053140666784. Its totient is φ = 59589170784000.

The previous prime is 249902085196733. The next prime is 249902085196847. The reversal of 249902085196830 is 38691580209942.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 564069961 + ... + 564512820.

It is an arithmetic number, because the mean of its divisors is an integer number (6979720215279).

Almost surely, 2^{249902085196830} is an apocalyptic number.

249902085196830 is an abundant number, since it is smaller than the sum of its proper divisors (420151055469954).

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

249902085196830 is a wasteful number, since it uses less digits than its factorization.

249902085196830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128582874 (or 1128582863 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 249902085196830 in words is "two hundred forty-nine trillion, nine hundred two billion, eighty-five million, one hundred ninety-six thousand, eight hundred thirty".