83756665738 has 16 divisors (see below), whose sum is σ = 126157360896. Its totient is φ = 41704573680.

The previous prime is 83756665631. The next prime is 83756665777.

83756665738 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 83756665738.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375868 + ... + 555688.

It is an arithmetic number, because the mean of its divisors is an integer number (7884835056).

Almost surely, 2^83756665738 is an apocalyptic number.

83756665738 is a deficient number, since it is larger than the sum of its proper divisors (42400695158).

83756665738 is a wasteful number, since it uses less digits than its factorization.

83756665738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180789.

The product of its digits is 152409600, while the sum is 64.

The spelling of 83756665738 in words is "eighty-three billion, seven hundred fifty-six million, six hundred sixty-five thousand, seven hundred thirty-eight".