42340104491 has 2 divisors, whose sum is σ = 42340104492. Its totient is φ = 42340104490.

The previous prime is 42340104437. The next prime is 42340104517. The reversal of 42340104491 is 19440104324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42340104491 - 2⁶ = 42340104427 is a prime.

It is not a weakly prime, because it can be changed into another prime (42340104421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170052245 + 21170052246.

It is an arithmetic number, because the mean of its divisors is an integer number (21170052246).

Almost surely, 2^42340104491 is an apocalyptic number.

42340104491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42340104491 is an equidigital number, since it uses as much as digits as its factorization.

42340104491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 42340104491 in words is "forty-two billion, three hundred forty million, one hundred four thousand, four hundred ninety-one".