42361561519 has 2 divisors, whose sum is σ = 42361561520. Its totient is φ = 42361561518.

The previous prime is 42361561477. The next prime is 42361561547. The reversal of 42361561519 is 91516516324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42361561519 - 2³³ = 33771626927 is a prime.

It is a super-2 number, since 2×42361561519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42361561589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21180780759 + 21180780760.

It is an arithmetic number, because the mean of its divisors is an integer number (21180780760).

Almost surely, 2^42361561519 is an apocalyptic number.

42361561519 is a deficient number, since it is larger than the sum of its proper divisors (1).

42361561519 is an equidigital number, since it uses as much as digits as its factorization.

42361561519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The spelling of 42361561519 in words is "forty-two billion, three hundred sixty-one million, five hundred sixty-one thousand, five hundred nineteen".