24198920640 has 448 divisors, whose sum is σ = 91776499200. Its totient is φ = 5980372992.

The previous prime is 24198920639. The next prime is 24198920651. The reversal of 24198920640 is 4602989142.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9839731 + ... + 9842189.

Almost surely, 2^24198920640 is an apocalyptic number.

24198920640 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 24198920640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45888249600).

24198920640 is an abundant number, since it is smaller than the sum of its proper divisors (67577578560).

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

24198920640 is a wasteful number, since it uses less digits than its factorization.

24198920640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 24198920640 in words is "twenty-four billion, one hundred ninety-eight million, nine hundred twenty thousand, six hundred forty".