799905979935 has 32 divisors (see below), whose sum is σ = 1439188289280. Its totient is φ = 421476558624.

The previous prime is 799905979933. The next prime is 799905979973. The reversal of 799905979935 is 539979509997.

It is not a de Polignac number, because 799905979935 - 2¹ = 799905979933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799905979933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35682949 + ... + 35705358.

It is an arithmetic number, because the mean of its divisors is an integer number (44974634040).

Almost surely, 2^799905979935 is an apocalyptic number.

799905979935 is a deficient number, since it is larger than the sum of its proper divisors (639282309345).

799905979935 is a wasteful number, since it uses less digits than its factorization.

799905979935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71388404 (or 71388398 counting only the distinct ones).

The product of its (nonzero) digits is 1953045675, while the sum is 81.

The spelling of 799905979935 in words is "seven hundred ninety-nine billion, nine hundred five million, nine hundred seventy-nine thousand, nine hundred thirty-five".