30157457117 has 2 divisors, whose sum is σ = 30157457118. Its totient is φ = 30157457116.

The previous prime is 30157457111. The next prime is 30157457177. The reversal of 30157457117 is 71175475103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30157448281 + 8836 = 173659^2 + 94^2 .

It is a cyclic number.

It is not a de Polignac number, because 30157457117 - 2¹² = 30157453021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30157457111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15078728558 + 15078728559.

It is an arithmetic number, because the mean of its divisors is an integer number (15078728559).

Almost surely, 2^30157457117 is an apocalyptic number.

It is an amenable number.

30157457117 is a deficient number, since it is larger than the sum of its proper divisors (1).

30157457117 is an equidigital number, since it uses as much as digits as its factorization.

30157457117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 30157457117 in words is "thirty billion, one hundred fifty-seven million, four hundred fifty-seven thousand, one hundred seventeen".