82667678667774 has 8 divisors (see below), whose sum is σ = 165335357335560. Its totient is φ = 27555892889256.

The previous prime is 82667678667733. The next prime is 82667678667779. The reversal of 82667678667774 is 47776687676628.

It is a sphenic number, since it is the product of 3 distinct primes.

82667678667774 is an admirable number.

It is a super-2 number, since 2×82667678667774² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82667678667779) 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, 6888973222309 + ... + 6888973222320.

It is an arithmetic number, because the mean of its divisors is an integer number (20666919666945).

Almost surely, 2^{82667678667774} is an apocalyptic number.

82667678667774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82667678667774 is a wasteful number, since it uses less digits than its factorization.

82667678667774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13777946444634.

The product of its digits is 66913910784, while the sum is 87.

The spelling of 82667678667774 in words is "eighty-two trillion, six hundred sixty-seven billion, six hundred seventy-eight million, six hundred sixty-seven thousand, seven hundred seventy-four".