30042491308157 has 2 divisors, whose sum is σ = 30042491308158. Its totient is φ = 30042491308156.

The previous prime is 30042491308111. The next prime is 30042491308177. The reversal of 30042491308157 is 75180319424003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28710853779001 + 1331637529156 = 5358251^2 + 1153966^2 .

It is a cyclic number.

It is not a de Polignac number, because 30042491308157 - 2¹⁴ = 30042491291773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30042491308177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15021245654078 + 15021245654079.

It is an arithmetic number, because the mean of its divisors is an integer number (15021245654079).

Almost surely, 2^{30042491308157} is an apocalyptic number.

It is an amenable number.

30042491308157 is a deficient number, since it is larger than the sum of its proper divisors (1).

30042491308157 is an equidigital number, since it uses as much as digits as its factorization.

30042491308157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 30042491308157 in words is "thirty trillion, forty-two billion, four hundred ninety-one million, three hundred eight thousand, one hundred fifty-seven".