249898000836 has 96 divisors (see below), whose sum is σ = 646056811008. Its totient is φ = 74543420160.

The previous prime is 249898000799. The next prime is 249898000841. The reversal of 249898000836 is 638000898942.

249898000836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13460136 + ... + 13478688.

It is an arithmetic number, because the mean of its divisors is an integer number (6729758448).

Almost surely, 2^249898000836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249898000836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323028405504).

249898000836 is an abundant number, since it is smaller than the sum of its proper divisors (396158810172).

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

249898000836 is a wasteful number, since it uses less digits than its factorization.

249898000836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20161 (or 20159 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 249898000836 in words is "two hundred forty-nine billion, eight hundred ninety-eight million, eight hundred thirty-six", and thus it is an aban number.