42861609419 has 2 divisors, whose sum is σ = 42861609420. Its totient is φ = 42861609418.

The previous prime is 42861609403. The next prime is 42861609433. The reversal of 42861609419 is 91490616824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42861609419 - 2⁴ = 42861609403 is a prime.

It is a super-2 number, since 2×42861609419² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42861609719) 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, 21430804709 + 21430804710.

It is an arithmetic number, because the mean of its divisors is an integer number (21430804710).

Almost surely, 2^42861609419 is an apocalyptic number.

42861609419 is a deficient number, since it is larger than the sum of its proper divisors (1).

42861609419 is an equidigital number, since it uses as much as digits as its factorization.

42861609419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 42861609419 in words is "forty-two billion, eight hundred sixty-one million, six hundred nine thousand, four hundred nineteen".