83742647767 has 2 divisors, whose sum is σ = 83742647768. Its totient is φ = 83742647766.

The previous prime is 83742647753. The next prime is 83742647783. The reversal of 83742647767 is 76774624738.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83742647767 - 2¹¹ = 83742645719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83742644767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41871323883 + 41871323884.

It is an arithmetic number, because the mean of its divisors is an integer number (41871323884).

Almost surely, 2^83742647767 is an apocalyptic number.

83742647767 is a deficient number, since it is larger than the sum of its proper divisors (1).

83742647767 is an equidigital number, since it uses as much as digits as its factorization.

83742647767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66382848, while the sum is 61.

The spelling of 83742647767 in words is "eighty-three billion, seven hundred forty-two million, six hundred forty-seven thousand, seven hundred sixty-seven".