799845637500 has 720 divisors, whose sum is σ = 3217017722688. Its totient is φ = 168739200000.

The previous prime is 799845637469. The next prime is 799845637501. The reversal of 799845637500 is 5736548997.

799845637500 is a `hidden beast` number, since 7 + 9 + 98 + 4 + 5 + 6 + 37 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799845637501) by changing a digit.

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 239 ways as a sum of consecutive naturals, for example, 92133160 + ... + 92141840.

Almost surely, 2^799845637500 is an apocalyptic number.

799845637500 is a gapful number since it is divisible by the number (70) 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 799845637500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608508861344).

799845637500 is an abundant number, since it is smaller than the sum of its proper divisors (2417172085188).

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

799845637500 is a wasteful number, since it uses less digits than its factorization.

799845637500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8742 (or 8711 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 799845637500 in words is "seven hundred ninety-nine billion, eight hundred forty-five million, six hundred thirty-seven thousand, five hundred".