199792795378 has 16 divisors (see below), whose sum is σ = 327135659040. Its totient is φ = 90758797600.

The previous prime is 199792795327. The next prime is 199792795381. The reversal of 199792795378 is 873597297991.

It is a super-2 number, since 2×199792795378² (a number of 23 digits) contains 22 as substring.

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, 2769043 + ... + 2840278.

It is an arithmetic number, because the mean of its divisors is an integer number (20445978690).

Almost surely, 2^199792795378 is an apocalyptic number.

199792795378 is a deficient number, since it is larger than the sum of its proper divisors (127342863662).

199792795378 is a wasteful number, since it uses less digits than its factorization.

199792795378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610953.

The product of its digits is 540101520, while the sum is 76.

The spelling of 199792795378 in words is "one hundred ninety-nine billion, seven hundred ninety-two million, seven hundred ninety-five thousand, three hundred seventy-eight".