42059406157 has 2 divisors, whose sum is σ = 42059406158. Its totient is φ = 42059406156.

The previous prime is 42059406143. The next prime is 42059406187. The reversal of 42059406157 is 75160495024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39692194441 + 2367211716 = 199229^2 + 48654^2 .

It is a cyclic number.

It is not a de Polignac number, because 42059406157 - 2³¹ = 39911922509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42059406187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21029703078 + 21029703079.

It is an arithmetic number, because the mean of its divisors is an integer number (21029703079).

Almost surely, 2^42059406157 is an apocalyptic number.

It is an amenable number.

42059406157 is a deficient number, since it is larger than the sum of its proper divisors (1).

42059406157 is an equidigital number, since it uses as much as digits as its factorization.

42059406157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 42059406157 in words is "forty-two billion, fifty-nine million, four hundred six thousand, one hundred fifty-seven".