30493567917 has 18 divisors (see below), whose sum is σ = 44136892046. Its totient is φ = 20287249200.

The previous prime is 30493567891. The next prime is 30493567921. The reversal of 30493567917 is 71976539403.

It is a happy number.

30493567917 is a `hidden beast` number, since 3 + 0 + 493 + 5 + 67 + 91 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16117318116 + 14376249801 = 126954^2 + 119901^2 .

It is not a de Polignac number, because 30493567917 - 2⁸ = 30493567661 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 (30493560917) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12969292 + ... + 12971642.

Almost surely, 2^30493567917 is an apocalyptic number.

It is an amenable number.

30493567917 is a deficient number, since it is larger than the sum of its proper divisors (13643324129).

30493567917 is an frugal number, since it uses more digits than its factorization.

30493567917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 30493567917 in words is "thirty billion, four hundred ninety-three million, five hundred sixty-seven thousand, nine hundred seventeen".