30713507217 has 24 divisors (see below), whose sum is σ = 46302632064. Its totient is φ = 19581274944.

The previous prime is 30713507197. The next prime is 30713507233. The reversal of 30713507217 is 71270531703.

30713507217 is a `hidden beast` number, since 307 + 135 + 0 + 7 + 217 = 666.

It is not a de Polignac number, because 30713507217 - 2¹¹ = 30713505169 is a prime.

It is a super-2 number, since 2×30713507217² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30713507917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1184253 + ... + 1209909.

It is an arithmetic number, because the mean of its divisors is an integer number (1929276336).

Almost surely, 2^30713507217 is an apocalyptic number.

It is an amenable number.

30713507217 is a deficient number, since it is larger than the sum of its proper divisors (15589124847).

30713507217 is a wasteful number, since it uses less digits than its factorization.

30713507217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31469 (or 31466 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The spelling of 30713507217 in words is "thirty billion, seven hundred thirteen million, five hundred seven thousand, two hundred seventeen".