19794793331 has 8 divisors (see below), whose sum is σ = 19917334704. Its totient is φ = 19672630560.

The previous prime is 19794793321. The next prime is 19794793339. The reversal of 19794793331 is 13339749791.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 19794793331 - 2⁶ = 19794793267 is a prime.

It is a super-2 number, since 2×19794793331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19794793339) 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, 10601 + ... + 199253.

It is an arithmetic number, because the mean of its divisors is an integer number (2489666838).

Almost surely, 2^19794793331 is an apocalyptic number.

19794793331 is a deficient number, since it is larger than the sum of its proper divisors (122541373).

19794793331 is a wasteful number, since it uses less digits than its factorization.

19794793331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189301.

The product of its digits is 3857868, while the sum is 56.

The spelling of 19794793331 in words is "nineteen billion, seven hundred ninety-four million, seven hundred ninety-three thousand, three hundred thirty-one".