249993675920 has 40 divisors (see below), whose sum is σ = 583092336696. Its totient is φ = 99677979648.

The previous prime is 249993675913. The next prime is 249993675947. The reversal of 249993675920 is 29576399942.

249993675920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1698758656 + 248294917264 = 41216^2 + 498292^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4966847 + ... + 5016926.

Almost surely, 2^249993675920 is an apocalyptic number.

249993675920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249993675920 is an abundant number, since it is smaller than the sum of its proper divisors (333098660776).

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

249993675920 is a wasteful number, since it uses less digits than its factorization.

249993675920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9984099 (or 9984093 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 65.

The spelling of 249993675920 in words is "two hundred forty-nine billion, nine hundred ninety-three million, six hundred seventy-five thousand, nine hundred twenty".