247324981120 has 128 divisors (see below), whose sum is σ = 684984623040. Its totient is φ = 83635421184.

The previous prime is 247324981109. The next prime is 247324981157. The reversal of 247324981120 is 21189423742.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×247324981120² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51087 + ... + 705166.

Almost surely, 2^247324981120 is an apocalyptic number.

247324981120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247324981120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342492311520).

247324981120 is an abundant number, since it is smaller than the sum of its proper divisors (437659641920).

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

247324981120 is an equidigital number, since it uses as much as digits as its factorization.

247324981120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756352 (or 756340 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 247324981120 in words is "two hundred forty-seven billion, three hundred twenty-four million, nine hundred eighty-one thousand, one hundred twenty".