82211658678 has 48 divisors (see below), whose sum is σ = 186338037600. Its totient is φ = 26161618560.

The previous prime is 82211658673. The next prime is 82211658757. The reversal of 82211658678 is 87685611228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82211658673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838338 + ... + 931253.

It is an arithmetic number, because the mean of its divisors is an integer number (3882042450).

Almost surely, 2^82211658678 is an apocalyptic number.

82211658678 is an abundant number, since it is smaller than the sum of its proper divisors (104126378922).

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

82211658678 is a wasteful number, since it uses less digits than its factorization.

82211658678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769717 (or 1769714 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The spelling of 82211658678 in words is "eighty-two billion, two hundred eleven million, six hundred fifty-eight thousand, six hundred seventy-eight".