42850071491 has 2 divisors, whose sum is σ = 42850071492. Its totient is φ = 42850071490.

The previous prime is 42850071457. The next prime is 42850071553. The reversal of 42850071491 is 19417005824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42850071491 - 2²² = 42845877187 is a prime.

It is a super-2 number, since 2×42850071491² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42850071421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425035745 + 21425035746.

It is an arithmetic number, because the mean of its divisors is an integer number (21425035746).

Almost surely, 2^42850071491 is an apocalyptic number.

42850071491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42850071491 is an equidigital number, since it uses as much as digits as its factorization.

42850071491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 42850071491 in words is "forty-two billion, eight hundred fifty million, seventy-one thousand, four hundred ninety-one".