42343479019 has 2 divisors, whose sum is σ = 42343479020. Its totient is φ = 42343479018.

The previous prime is 42343478981. The next prime is 42343479029. The reversal of 42343479019 is 91097434324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42343479019 - 2¹⁷ = 42343347947 is a prime.

It is a super-2 number, since 2×42343479019² (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 42343479019.

It is not a weakly prime, because it can be changed into another prime (42343479029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21171739509 + 21171739510.

It is an arithmetic number, because the mean of its divisors is an integer number (21171739510).

Almost surely, 2^42343479019 is an apocalyptic number.

42343479019 is a deficient number, since it is larger than the sum of its proper divisors (1).

42343479019 is an equidigital number, since it uses as much as digits as its factorization.

42343479019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 42343479019 in words is "forty-two billion, three hundred forty-three million, four hundred seventy-nine thousand, nineteen".