82140866862 has 16 divisors (see below), whose sum is σ = 164294998272. Its totient is φ = 27378078200.

The previous prime is 82140866813. The next prime is 82140866869. The reversal of 82140866862 is 26866804128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82140866869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471264 + ... + 621587.

It is an arithmetic number, because the mean of its divisors is an integer number (10268437392).

Almost surely, 2^82140866862 is an apocalyptic number.

82140866862 is an abundant number, since it is smaller than the sum of its proper divisors (82154131410).

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

82140866862 is a wasteful number, since it uses less digits than its factorization.

82140866862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105383.

The product of its (nonzero) digits is 1769472, while the sum is 51.

The spelling of 82140866862 in words is "eighty-two billion, one hundred forty million, eight hundred sixty-six thousand, eight hundred sixty-two".