1992519473 has 4 divisors (see below), whose sum is σ = 2277165120. Its totient is φ = 1707873828.

The previous prime is 1992519437. The next prime is 1992519481. The reversal of 1992519473 is 3749152991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1992519473 - 2⁶ = 1992519409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1992519413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142322813 + ... + 142322826.

It is an arithmetic number, because the mean of its divisors is an integer number (569291280).

Almost surely, 2^1992519473 is an apocalyptic number.

It is an amenable number.

1992519473 is a deficient number, since it is larger than the sum of its proper divisors (284645647).

1992519473 is an equidigital number, since it uses as much as digits as its factorization.

1992519473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284645646.

The product of its digits is 612360, while the sum is 50.

The square root of 1992519473 is about 44637.6463649239. The cubic root of 1992519473 is about 1258.3482751594.

The spelling of 1992519473 in words is "one billion, nine hundred ninety-two million, five hundred nineteen thousand, four hundred seventy-three".