249873132012 has 96 divisors (see below), whose sum is σ = 672823936512. Its totient is φ = 70696905216.

The previous prime is 249873132011. The next prime is 249873132023. The reversal of 249873132012 is 210231378942.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (249873132011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34447378 + ... + 34454630.

It is an arithmetic number, because the mean of its divisors is an integer number (7008582672).

Almost surely, 2^249873132012 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 249873132012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336411968256).

249873132012 is an abundant number, since it is smaller than the sum of its proper divisors (422950804500).

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

249873132012 is a wasteful number, since it uses less digits than its factorization.

249873132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11207 (or 11205 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 249873132012 in words is "two hundred forty-nine billion, eight hundred seventy-three million, one hundred thirty-two thousand, twelve".