799727329638 has 24 divisors (see below), whose sum is σ = 1732783420368. Its totient is φ = 266569488432.

The previous prime is 799727329591. The next prime is 799727329657. The reversal of 799727329638 is 836923727997.

It is a super-2 number, since 2×799727329638² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294856 + ... + 1298612.

It is an arithmetic number, because the mean of its divisors is an integer number (72199309182).

Almost surely, 2^799727329638 is an apocalyptic number.

799727329638 is an abundant number, since it is smaller than the sum of its proper divisors (933056090730).

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

799727329638 is a wasteful number, since it uses less digits than its factorization.

799727329638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048028 (or 1048025 counting only the distinct ones).

The product of its digits is 432081216, while the sum is 72.

The spelling of 799727329638 in words is "seven hundred ninety-nine billion, seven hundred twenty-seven million, three hundred twenty-nine thousand, six hundred thirty-eight".