1992517799 has 8 divisors (see below), whose sum is σ = 2031792672. Its totient is φ = 1953626400.

The previous prime is 1992517753. The next prime is 1992517829. The reversal of 1992517799 is 9977152991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1992517799 - 2²⁸ = 1724082343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992517399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85364 + ... + 106169.

It is an arithmetic number, because the mean of its divisors is an integer number (253974084).

Almost surely, 2^1992517799 is an apocalyptic number.

1992517799 is a deficient number, since it is larger than the sum of its proper divisors (39274873).

1992517799 is a wasteful number, since it uses less digits than its factorization.

1992517799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191737.

The product of its digits is 3214890, while the sum is 59.

The square root of 1992517799 is about 44637.6276139313. The cubic root of 1992517799 is about 1258.3479227621.

The spelling of 1992517799 in words is "one billion, nine hundred ninety-two million, five hundred seventeen thousand, seven hundred ninety-nine".