24720280872 has 96 divisors (see below), whose sum is σ = 72963839520. Its totient is φ = 6957498240.

The previous prime is 24720280867. The next prime is 24720280877. The reversal of 24720280872 is 27808202742.

It is an interprime number because it is at equal distance from previous prime (24720280867) and next prime (24720280877).

It is a super-2 number, since 2×24720280872² (a number of 22 digits) contains 22 as substring.

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 (24720280877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78079 + ... + 235662.

It is an arithmetic number, because the mean of its divisors is an integer number (760039995).

Almost surely, 2^24720280872 is an apocalyptic number.

It is an amenable number.

24720280872 is an abundant number, since it is smaller than the sum of its proper divisors (48243558648).

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

24720280872 is a wasteful number, since it uses less digits than its factorization.

24720280872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313831 (or 313820 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The spelling of 24720280872 in words is "twenty-four billion, seven hundred twenty million, two hundred eighty thousand, eight hundred seventy-two".