249387999996 has 24 divisors (see below), whose sum is σ = 581917633920. Its totient is φ = 83127576112.

The previous prime is 249387999989. The next prime is 249387999997. The reversal of 249387999996 is 699999783942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249387999997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454435 + ... + 839813.

It is an arithmetic number, because the mean of its divisors is an integer number (24246568080).

Almost surely, 2^249387999996 is an apocalyptic number.

It is an amenable number.

249387999996 is an abundant number, since it is smaller than the sum of its proper divisors (332529633924).

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

249387999996 is a wasteful number, since it uses less digits than its factorization.

249387999996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439313 (or 439311 counting only the distinct ones).

The product of its digits is 4285540224, while the sum is 84.

The spelling of 249387999996 in words is "two hundred forty-nine billion, three hundred eighty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-six".