199019744792 has 16 divisors (see below), whose sum is σ = 407085841800. Its totient is φ = 90463520320.

The previous prime is 199019744789. The next prime is 199019744813. The reversal of 199019744792 is 297447910991.

It is a super-2 number, since 2×199019744792² (a number of 23 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 3 ways as a sum of consecutive naturals, for example, 1130793917 + ... + 1130794092.

Almost surely, 2^199019744792 is an apocalyptic number.

It is an amenable number.

199019744792 is an abundant number, since it is smaller than the sum of its proper divisors (208066097008).

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

199019744792 is a wasteful number, since it uses less digits than its factorization.

199019744792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261588026 (or 2261588022 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 62.

The spelling of 199019744792 in words is "one hundred ninety-nine billion, nineteen million, seven hundred forty-four thousand, seven hundred ninety-two".