24930800021 has 16 divisors (see below), whose sum is σ = 26645773440. Its totient is φ = 23269498560.

The previous prime is 24930799987. The next prime is 24930800039. The reversal of 24930800021 is 12000803942.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24930800021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24930802021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1045451 + ... + 1069031.

It is an arithmetic number, because the mean of its divisors is an integer number (1665360840).

Almost surely, 2^24930800021 is an apocalyptic number.

It is an amenable number.

24930800021 is a deficient number, since it is larger than the sum of its proper divisors (1714973419).

24930800021 is a wasteful number, since it uses less digits than its factorization.

24930800021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24716.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 24930800021 in words is "twenty-four billion, nine hundred thirty million, eight hundred thousand, twenty-one".