82786603664 has 10 divisors (see below), whose sum is σ = 160399044630. Its totient is φ = 41393301824.

The previous prime is 82786603663. The next prime is 82786603681. The reversal of 82786603664 is 46630668728.

It can be written as a sum of positive squares in only one way, i.e., 56377753600 + 26408850064 = 237440^2 + 162508^2 .

It is not an unprimeable number, because it can be changed into a prime (82786603663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2587081349 + ... + 2587081380.

It is an arithmetic number, because the mean of its divisors is an integer number (16039904463).

Almost surely, 2^82786603664 is an apocalyptic number.

It is an amenable number.

82786603664 is a deficient number, since it is larger than the sum of its proper divisors (77612440966).

82786603664 is a wasteful number, since it uses less digits than its factorization.

82786603664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174162737 (or 5174162731 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 82786603664 in words is "eighty-two billion, seven hundred eighty-six million, six hundred three thousand, six hundred sixty-four".