82904667866 has 4 divisors (see below), whose sum is σ = 124357001802. Its totient is φ = 41452333932.

The previous prime is 82904667823. The next prime is 82904667889. The reversal of 82904667866 is 66876640928.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82443062641 + 461605225 = 287129^2 + 21485^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82904667799 and 82904667808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20726166965 + ... + 20726166968.

Almost surely, 2^82904667866 is an apocalyptic number.

82904667866 is a deficient number, since it is larger than the sum of its proper divisors (41452333936).

82904667866 is a wasteful number, since it uses less digits than its factorization.

82904667866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41452333935.

The product of its (nonzero) digits is 41803776, while the sum is 62.

The spelling of 82904667866 in words is "eighty-two billion, nine hundred four million, six hundred sixty-seven thousand, eight hundred sixty-six".