42436749259 has 2 divisors, whose sum is σ = 42436749260. Its totient is φ = 42436749258.

The previous prime is 42436749233. The next prime is 42436749269. The reversal of 42436749259 is 95294763424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42436749259 - 2⁵ = 42436749227 is a prime.

It is not a weakly prime, because it can be changed into another prime (42436749269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218374629 + 21218374630.

It is an arithmetic number, because the mean of its divisors is an integer number (21218374630).

Almost surely, 2^42436749259 is an apocalyptic number.

42436749259 is a deficient number, since it is larger than the sum of its proper divisors (1).

42436749259 is an equidigital number, since it uses as much as digits as its factorization.

42436749259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 55.

The spelling of 42436749259 in words is "forty-two billion, four hundred thirty-six million, seven hundred forty-nine thousand, two hundred fifty-nine".