30766217047 has 2 divisors, whose sum is σ = 30766217048. Its totient is φ = 30766217046.

The previous prime is 30766217021. The next prime is 30766217081. The reversal of 30766217047 is 74071266703.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30766217047 is a prime.

It is a super-2 number, since 2×30766217047² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30766216994 and 30766217012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30766217087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15383108523 + 15383108524.

It is an arithmetic number, because the mean of its divisors is an integer number (15383108524).

Almost surely, 2^30766217047 is an apocalyptic number.

30766217047 is a deficient number, since it is larger than the sum of its proper divisors (1).

30766217047 is an equidigital number, since it uses as much as digits as its factorization.

30766217047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 30766217047 in words is "thirty billion, seven hundred sixty-six million, two hundred seventeen thousand, forty-seven".