30429864173 has 2 divisors, whose sum is σ = 30429864174. Its totient is φ = 30429864172.

The previous prime is 30429864163. The next prime is 30429864191. The reversal of 30429864173 is 37146892403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24205758724 + 6224105449 = 155582^2 + 78893^2 .

It is a cyclic number.

It is not a de Polignac number, because 30429864173 - 2²⁰ = 30428815597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30429864163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15214932086 + 15214932087.

It is an arithmetic number, because the mean of its divisors is an integer number (15214932087).

Almost surely, 2^30429864173 is an apocalyptic number.

It is an amenable number.

30429864173 is a deficient number, since it is larger than the sum of its proper divisors (1).

30429864173 is an equidigital number, since it uses as much as digits as its factorization.

30429864173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 30429864173 in words is "thirty billion, four hundred twenty-nine million, eight hundred sixty-four thousand, one hundred seventy-three".