83639109375364 has 9 divisors (see below), whose sum is σ = 146368473415941. Its totient is φ = 41819545542240.

The previous prime is 83639109375323. The next prime is 83639109375391. The reversal of 83639109375364 is 46357390193638.

The square root of 83639109375364 is 9145442.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9209149176964 + 74429960198400 = 3034658^2 + 8627280^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83639109375364.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 16004524 + ... + 20577244.

Almost surely, 2^{83639109375364} is an apocalyptic number.

83639109375364 is the 9145442-nd square number.

It is an amenable number.

83639109375364 is a deficient number, since it is larger than the sum of its proper divisors (62729364040577).

83639109375364 is an frugal number, since it uses more digits than its factorization.

83639109375364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9145446 (or 4572723 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 67.

The spelling of 83639109375364 in words is "eighty-three trillion, six hundred thirty-nine billion, one hundred nine million, three hundred seventy-five thousand, three hundred sixty-four".