82373784678 has 32 divisors (see below), whose sum is σ = 186155452800. Its totient is φ = 26992538568.

The previous prime is 82373784667. The next prime is 82373784761. The reversal of 82373784678 is 87648737328.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12924276 + ... + 12930647.

It is an arithmetic number, because the mean of its divisors is an integer number (5817357900).

Almost surely, 2^82373784678 is an apocalyptic number.

82373784678 is an abundant number, since it is smaller than the sum of its proper divisors (103781668122).

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

82373784678 is a wasteful number, since it uses less digits than its factorization.

82373784678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25854993 (or 25854987 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 63.

The spelling of 82373784678 in words is "eighty-two billion, three hundred seventy-three million, seven hundred eighty-four thousand, six hundred seventy-eight".