42727686907 has 2 divisors, whose sum is σ = 42727686908. Its totient is φ = 42727686906.

The previous prime is 42727686853. The next prime is 42727686931. The reversal of 42727686907 is 70968672724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42727686907 is a prime.

It is not a weakly prime, because it can be changed into another prime (42727686997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21363843453 + 21363843454.

It is an arithmetic number, because the mean of its divisors is an integer number (21363843454).

Almost surely, 2^42727686907 is an apocalyptic number.

42727686907 is a deficient number, since it is larger than the sum of its proper divisors (1).

42727686907 is an equidigital number, since it uses as much as digits as its factorization.

42727686907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14224896, while the sum is 58.

The spelling of 42727686907 in words is "forty-two billion, seven hundred twenty-seven million, six hundred eighty-six thousand, nine hundred seven".