42512260291 has 2 divisors, whose sum is σ = 42512260292. Its totient is φ = 42512260290.

The previous prime is 42512260279. The next prime is 42512260313. The reversal of 42512260291 is 19206221524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42512260291 - 2³³ = 33922325699 is a prime.

It is not a weakly prime, because it can be changed into another prime (42512261291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21256130145 + 21256130146.

It is an arithmetic number, because the mean of its divisors is an integer number (21256130146).

Almost surely, 2^42512260291 is an apocalyptic number.

42512260291 is a deficient number, since it is larger than the sum of its proper divisors (1).

42512260291 is an equidigital number, since it uses as much as digits as its factorization.

42512260291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 42512260291 in words is "forty-two billion, five hundred twelve million, two hundred sixty thousand, two hundred ninety-one".