82706766604751 has 4 divisors (see below), whose sum is σ = 82757788670904. Its totient is φ = 82655744538600.

The previous prime is 82706766604747. The next prime is 82706766604859. The reversal of 82706766604751 is 15740666760728.

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

It is a cyclic number.

It is not a de Polignac number, because 82706766604751 - 2² = 82706766604747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82706766604951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25511030645 + ... + 25511033886.

It is an arithmetic number, because the mean of its divisors is an integer number (20689447167726).

Almost surely, 2^{82706766604751} is an apocalyptic number.

82706766604751 is a deficient number, since it is larger than the sum of its proper divisors (51022066153).

82706766604751 is a wasteful number, since it uses less digits than its factorization.

82706766604751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51022066152.

The product of its (nonzero) digits is 142248960, while the sum is 65.

The spelling of 82706766604751 in words is "eighty-two trillion, seven hundred six billion, seven hundred sixty-six million, six hundred four thousand, seven hundred fifty-one".