799910866500 has 96 divisors (see below), whose sum is σ = 2333218847232. Its totient is φ = 212954400000.

The previous prime is 799910866493. The next prime is 799910866529. The reversal of 799910866500 is 5668019997.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457845 + ... + 1345155.

It is an arithmetic number, because the mean of its divisors is an integer number (24304362992).

Almost surely, 2^799910866500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799910866500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166609423616).

799910866500 is an abundant number, since it is smaller than the sum of its proper divisors (1533307980732).

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

799910866500 is a wasteful number, since it uses less digits than its factorization.

799910866500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887934 (or 887922 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 60.

It can be divided in two parts, 7999108 and 66500, that added together give a palindrome (8065608).

The spelling of 799910866500 in words is "seven hundred ninety-nine billion, nine hundred ten million, eight hundred sixty-six thousand, five hundred".