83742647768 has 32 divisors (see below), whose sum is σ = 179042542560. Its totient is φ = 36376896000.

The previous prime is 83742647767. The next prime is 83742647783. The reversal of 83742647768 is 86774624738.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 83742647768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83742647767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23681108 + ... + 23684643.

It is an arithmetic number, because the mean of its divisors is an integer number (5595079455).

Almost surely, 2^83742647768 is an apocalyptic number.

It is an amenable number.

83742647768 is an abundant number, since it is smaller than the sum of its proper divisors (95299894792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83742647768 is a wasteful number, since it uses less digits than its factorization.

83742647768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47365787 (or 47365783 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 62.

The spelling of 83742647768 in words is "eighty-three billion, seven hundred forty-two million, six hundred forty-seven thousand, seven hundred sixty-eight".