42040137959 has 2 divisors, whose sum is σ = 42040137960. Its totient is φ = 42040137958.

The previous prime is 42040137917. The next prime is 42040137967. The reversal of 42040137959 is 95973104024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42040137959 - 2¹⁶ = 42040072423 is a prime.

It is a super-2 number, since 2×42040137959² (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 (42040130959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020068979 + 21020068980.

It is an arithmetic number, because the mean of its divisors is an integer number (21020068980).

Almost surely, 2^42040137959 is an apocalyptic number.

42040137959 is a deficient number, since it is larger than the sum of its proper divisors (1).

42040137959 is an equidigital number, since it uses as much as digits as its factorization.

42040137959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 42040137959 in words is "forty-two billion, forty million, one hundred thirty-seven thousand, nine hundred fifty-nine".