42316425181 has 2 divisors, whose sum is σ = 42316425182. Its totient is φ = 42316425180.

The previous prime is 42316425169. The next prime is 42316425197. The reversal of 42316425181 is 18152461324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37083204900 + 5233220281 = 192570^2 + 72341^2 .

It is a cyclic number.

It is not a de Polignac number, because 42316425181 - 2¹⁵ = 42316392413 is a prime.

It is a super-2 number, since 2×42316425181² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42316425181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42316425131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21158212590 + 21158212591.

It is an arithmetic number, because the mean of its divisors is an integer number (21158212591).

Almost surely, 2^42316425181 is an apocalyptic number.

It is an amenable number.

42316425181 is a deficient number, since it is larger than the sum of its proper divisors (1).

42316425181 is an equidigital number, since it uses as much as digits as its factorization.

42316425181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The spelling of 42316425181 in words is "forty-two billion, three hundred sixteen million, four hundred twenty-five thousand, one hundred eighty-one".