249387999998 has 16 divisors (see below), whose sum is σ = 377410635360. Its totient is φ = 123589269216.

The previous prime is 249387999997. The next prime is 249388000051. The reversal of 249387999998 is 899999783942.

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, 1099733 + ... + 1306976.

It is an arithmetic number, because the mean of its divisors is an integer number (23588164710).

Almost surely, 2^249387999998 is an apocalyptic number.

249387999998 is a deficient number, since it is larger than the sum of its proper divisors (128022635362).

249387999998 is a wasteful number, since it uses less digits than its factorization.

249387999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407171.

The product of its digits is 5714053632, while the sum is 86.

The spelling of 249387999998 in words is "two hundred forty-nine billion, three hundred eighty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-eight".