791298021888 has 640 divisors, whose sum is σ = 2778999632640. Its totient is φ = 219556085760.

The previous prime is 791298021853. The next prime is 791298021911. The reversal of 791298021888 is 888120892197.

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, 95644120 + ... + 95652392.

It is an arithmetic number, because the mean of its divisors is an integer number (4342186926).

Almost surely, 2^791298021888 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 791298021888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389499816320).

791298021888 is an abundant number, since it is smaller than the sum of its proper divisors (1987701610752).

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

791298021888 is a wasteful number, since it uses less digits than its factorization.

791298021888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365 (or 8343 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 63.

The spelling of 791298021888 in words is "seven hundred ninety-one billion, two hundred ninety-eight million, twenty-one thousand, eight hundred eighty-eight".