799778636826624 has 3456 divisors, whose sum is σ = 3182387250631680. Its totient is φ = 187559162413056.

The previous prime is 799778636826569. The next prime is 799778636826649. The reversal of 799778636826624 is 426628636877997.

799778636826624 is a `hidden beast` number, since 7 + 9 + 97 + 7 + 86 + 368 + 2 + 66 + 24 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 6297469581249 + ... + 6297469581375.

It is an arithmetic number, because the mean of its divisors is an integer number (920829644280).

Almost surely, 2^{799778636826624} is an apocalyptic number.

799778636826624 is a gapful number since it is divisible by the number (74) 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 799778636826624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591193625315840).

799778636826624 is an abundant number, since it is smaller than the sum of its proper divisors (2382608613805056).

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

799778636826624 is a wasteful number, since it uses less digits than its factorization.

799778636826624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 253 counting only the distinct ones).

The product of its digits is 110612791296, while the sum is 90.

The spelling of 799778636826624 in words is "seven hundred ninety-nine trillion, seven hundred seventy-eight billion, six hundred thirty-six million, eight hundred twenty-six thousand, six hundred twenty-four".