805199796938 has 16 divisors (see below), whose sum is σ = 1280457222144. Its totient is φ = 379082728080.

The previous prime is 805199796911. The next prime is 805199796941. The reversal of 805199796938 is 839697991508.

It is a Harshad number since it is a multiple of its sum of digits (74).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175498970 + ... + 175503557.

It is an arithmetic number, because the mean of its divisors is an integer number (80028576384).

Almost surely, 2^805199796938 is an apocalyptic number.

805199796938 is a deficient number, since it is larger than the sum of its proper divisors (475257425206).

805199796938 is a wasteful number, since it uses less digits than its factorization.

805199796938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351002597.

The product of its (nonzero) digits is 264539520, while the sum is 74.

The spelling of 805199796938 in words is "eight hundred five billion, one hundred ninety-nine million, seven hundred ninety-six thousand, nine hundred thirty-eight".