42850071647 has 2 divisors, whose sum is σ = 42850071648. Its totient is φ = 42850071646.

The previous prime is 42850071637. The next prime is 42850071673. The reversal of 42850071647 is 74617005824.

42850071647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42850071647 - 2⁸ = 42850071391 is a prime.

It is a super-2 number, since 2×42850071647² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42850071598 and 42850071607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42850071637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425035823 + 21425035824.

It is an arithmetic number, because the mean of its divisors is an integer number (21425035824).

Almost surely, 2^42850071647 is an apocalyptic number.

42850071647 is a deficient number, since it is larger than the sum of its proper divisors (1).

42850071647 is an equidigital number, since it uses as much as digits as its factorization.

42850071647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 42850071647 in words is "forty-two billion, eight hundred fifty million, seventy-one thousand, six hundred forty-seven".