42706856371 has 2 divisors, whose sum is σ = 42706856372. Its totient is φ = 42706856370.

The previous prime is 42706856359. The next prime is 42706856407. The reversal of 42706856371 is 17365860724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42706856371 - 2¹⁵ = 42706823603 is a prime.

It is not a weakly prime, because it can be changed into another prime (42706856321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21353428185 + 21353428186.

It is an arithmetic number, because the mean of its divisors is an integer number (21353428186).

Almost surely, 2^42706856371 is an apocalyptic number.

42706856371 is a deficient number, since it is larger than the sum of its proper divisors (1).

42706856371 is an equidigital number, since it uses as much as digits as its factorization.

42706856371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 42706856371 in words is "forty-two billion, seven hundred six million, eight hundred fifty-six thousand, three hundred seventy-one".