42705702047 has 2 divisors, whose sum is σ = 42705702048. Its totient is φ = 42705702046.

The previous prime is 42705702043. The next prime is 42705702107. The reversal of 42705702047 is 74020750724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42705702047 - 2² = 42705702043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42705702047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42705702043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21352851023 + 21352851024.

It is an arithmetic number, because the mean of its divisors is an integer number (21352851024).

Almost surely, 2^42705702047 is an apocalyptic number.

42705702047 is a deficient number, since it is larger than the sum of its proper divisors (1).

42705702047 is an equidigital number, since it uses as much as digits as its factorization.

42705702047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109760, while the sum is 38.

The spelling of 42705702047 in words is "forty-two billion, seven hundred five million, seven hundred two thousand, forty-seven".