83792718636 has 48 divisors (see below), whose sum is σ = 213320096640. Its totient is φ = 25388216320.

The previous prime is 83792718631. The next prime is 83792718643. The reversal of 83792718636 is 63681729738.

It is a self number, because there is not a number n which added to its sum of digits gives 83792718636.

It is not an unprimeable number, because it can be changed into a prime (83792718631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007695 + ... + 1087673.

It is an arithmetic number, because the mean of its divisors is an integer number (4444168680).

Almost surely, 2^83792718636 is an apocalyptic number.

It is an amenable number.

83792718636 is an abundant number, since it is smaller than the sum of its proper divisors (129527378004).

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

83792718636 is a wasteful number, since it uses less digits than its factorization.

83792718636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87934 (or 87932 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 60.

The spelling of 83792718636 in words is "eighty-three billion, seven hundred ninety-two million, seven hundred eighteen thousand, six hundred thirty-six".