20104717393 has 16 divisors (see below), whose sum is σ = 21016569600. Its totient is φ = 19207742400.

The previous prime is 20104717363. The next prime is 20104717421. The reversal of 20104717393 is 39371740102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20104717393 - 2⁹ = 20104716881 is a prime.

It is a super-2 number, since 2×20104717393² (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 (20104717313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6088843 + ... + 6092143.

It is an arithmetic number, because the mean of its divisors is an integer number (1313535600).

Almost surely, 2^20104717393 is an apocalyptic number.

It is an amenable number.

20104717393 is a deficient number, since it is larger than the sum of its proper divisors (911852207).

20104717393 is a wasteful number, since it uses less digits than its factorization.

20104717393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 20104717393 in words is "twenty billion, one hundred four million, seven hundred seventeen thousand, three hundred ninety-three".