799863828368998 has 4 divisors (see below), whose sum is σ = 1199795742553500. Its totient is φ = 399931914184498.

The previous prime is 799863828368897. The next prime is 799863828369037. The reversal of 799863828368998 is 899863828368997.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 799863828368897 and 799863828368906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199965957092248 + ... + 199965957092251.

It is an arithmetic number, because the mean of its divisors is an integer number (299948935638375).

Almost surely, 2^{799863828368998} is an apocalyptic number.

799863828368998 is a deficient number, since it is larger than the sum of its proper divisors (399931914184502).

799863828368998 is a wasteful number, since it uses less digits than its factorization.

799863828368998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399931914184501.

The product of its digits is 975198486528, while the sum is 103.

Subtracting 799863828368998 from its reverse (899863828368997), we obtain a palindrome (99999999999999).

The spelling of 799863828368998 in words is "seven hundred ninety-nine trillion, eight hundred sixty-three billion, eight hundred twenty-eight million, three hundred sixty-eight thousand, nine hundred ninety-eight".