82138616862 has 64 divisors (see below), whose sum is σ = 182299852800. Its totient is φ = 24567654240.

The previous prime is 82138616821. The next prime is 82138616869. The reversal of 82138616862 is 26861683128.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82138616869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81162 + ... + 413357.

It is an arithmetic number, because the mean of its divisors is an integer number (2848435200).

Almost surely, 2^82138616862 is an apocalyptic number.

82138616862 is an abundant number, since it is smaller than the sum of its proper divisors (100161235938).

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

82138616862 is a wasteful number, since it uses less digits than its factorization.

82138616862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494621.

The product of its digits is 1327104, while the sum is 51.

The spelling of 82138616862 in words is "eighty-two billion, one hundred thirty-eight million, six hundred sixteen thousand, eight hundred sixty-two".