82717660706 has 4 divisors (see below), whose sum is σ = 124076491062. Its totient is φ = 41358830352.

The previous prime is 82717660681. The next prime is 82717660709. The reversal of 82717660706 is 60706671728.

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., 75053533681 + 7664127025 = 273959^2 + 87545^2 .

It is a super-2 number, since 2×82717660706² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82717660709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20679415175 + ... + 20679415178.

Almost surely, 2^82717660706 is an apocalyptic number.

82717660706 is a deficient number, since it is larger than the sum of its proper divisors (41358830356).

82717660706 is a wasteful number, since it uses less digits than its factorization.

82717660706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41358830355.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 82717660706 in words is "eighty-two billion, seven hundred seventeen million, six hundred sixty thousand, seven hundred six".