1992165489 has 16 divisors (see below), whose sum is σ = 2952599040. Its totient is φ = 1327551120.

The previous prime is 1992165473. The next prime is 1992165529. The reversal of 1992165489 is 9845612991.

1992165489 is a `hidden beast` number, since 1 + 9 + 92 + 1 + 6 + 548 + 9 = 666.

1992165489 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1992165489 - 2⁴ = 1992165473 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1992165449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55719 + ... + 84195.

It is an arithmetic number, because the mean of its divisors is an integer number (184537440).

Almost surely, 2^1992165489 is an apocalyptic number.

It is an amenable number.

1992165489 is a deficient number, since it is larger than the sum of its proper divisors (960433551).

1992165489 is a wasteful number, since it uses less digits than its factorization.

1992165489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31077 (or 31071 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 1992165489 is about 44633.6811051923. The cubic root of 1992165489 is about 1258.2737528369.

The spelling of 1992165489 in words is "one billion, nine hundred ninety-two million, one hundred sixty-five thousand, four hundred eighty-nine".