799961488128 has 648 divisors, whose sum is σ = 2669885677200. Its totient is φ = 236084428800.

The previous prime is 799961488127. The next prime is 799961488181. The reversal of 799961488128 is 821884169997.

799961488128 is a `hidden beast` number, since 79 + 9 + 9 + 61 + 488 + 12 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (799961488127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1405907428 + ... + 1405907996.

Almost surely, 2^799961488128 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 799961488128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334942838600).

799961488128 is an abundant number, since it is smaller than the sum of its proper divisors (1869924189072).

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

799961488128 is a wasteful number, since it uses less digits than its factorization.

799961488128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 626 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 72.

The spelling of 799961488128 in words is "seven hundred ninety-nine billion, nine hundred sixty-one million, four hundred eighty-eight thousand, one hundred twenty-eight".