19230788481 has 4 divisors (see below), whose sum is σ = 25641051312. Its totient is φ = 12820525652.

The previous prime is 19230788429. The next prime is 19230788491. The reversal of 19230788481 is 18488703291.

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 19230788481 - 2¹¹ = 19230786433 is a prime.

It is a super-2 number, since 2×19230788481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19230788491) 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 3 ways as a sum of consecutive naturals, for example, 3205131411 + ... + 3205131416.

It is an arithmetic number, because the mean of its divisors is an integer number (6410262828).

Almost surely, 2^19230788481 is an apocalyptic number.

It is an amenable number.

19230788481 is a deficient number, since it is larger than the sum of its proper divisors (6410262831).

19230788481 is an equidigital number, since it uses as much as digits as its factorization.

19230788481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410262830.

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 19230788481 in words is "nineteen billion, two hundred thirty million, seven hundred eighty-eight thousand, four hundred eighty-one".