249080732880 has 160 divisors (see below), whose sum is σ = 892373241600. Its totient is φ = 56293011456.

The previous prime is 249080732861. The next prime is 249080732899. The reversal of 249080732880 is 88237080942.

It is an interprime number because it is at equal distance from previous prime (249080732861) and next prime (249080732899).

It is a super-2 number, since 2×249080732880² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 683415 + ... + 982454.

It is an arithmetic number, because the mean of its divisors is an integer number (5577332760).

Almost surely, 2^249080732880 is an apocalyptic number.

249080732880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249080732880 is an abundant number, since it is smaller than the sum of its proper divisors (643292508720).

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

249080732880 is a wasteful number, since it uses less digits than its factorization.

249080732880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665981 (or 1665975 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 249080732880 in words is "two hundred forty-nine billion, eighty million, seven hundred thirty-two thousand, eight hundred eighty".