19230230773 has 6 divisors (see below), whose sum is σ = 20710017762. Its totient is φ = 17750520720.

The previous prime is 19230230759. The next prime is 19230230777. The reversal of 19230230773 is 37703203291.

It can be written as a sum of positive squares in 3 ways, for example, as 483692049 + 18746538724 = 21993^2 + 136918^2 .

It is a de Polignac number, because none of the positive numbers 2^k-19230230773 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 (19230230777) 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 5 ways as a sum of consecutive naturals, for example, 480763 + ... + 519223.

It is an arithmetic number, because the mean of its divisors is an integer number (3451669627).

Almost surely, 2^19230230773 is an apocalyptic number.

19230230773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19230230773 is a deficient number, since it is larger than the sum of its proper divisors (1479786989).

19230230773 is an frugal number, since it uses more digits than its factorization.

19230230773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76935 (or 38474 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 37.

The spelling of 19230230773 in words is "nineteen billion, two hundred thirty million, two hundred thirty thousand, seven hundred seventy-three".