19923192241 has 8 divisors (see below), whose sum is σ = 20613925800. Its totient is φ = 19232707200.

The previous prime is 19923192239. The next prime is 19923192259. The reversal of 19923192241 is 14229132991.

It can be written as a sum of positive squares in 4 ways, for example, as 6812026225 + 13111166016 = 82535^2 + 114504^2 .

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

It is not a de Polignac number, because 19923192241 - 2¹ = 19923192239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19923192271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109015 + ... + 227443.

It is an arithmetic number, because the mean of its divisors is an integer number (2576740725).

Almost surely, 2^19923192241 is an apocalyptic number.

It is an amenable number.

19923192241 is a deficient number, since it is larger than the sum of its proper divisors (690733559).

19923192241 is a wasteful number, since it uses less digits than its factorization.

19923192241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124259.

The product of its digits is 69984, while the sum is 43.

The spelling of 19923192241 in words is "nineteen billion, nine hundred twenty-three million, one hundred ninety-two thousand, two hundred forty-one".