82915706412 has 432 divisors, whose sum is σ = 279131973120. Its totient is φ = 20257205760.

The previous prime is 82915706389. The next prime is 82915706413. The reversal of 82915706412 is 21460751928.

82915706412 is a `hidden beast` number, since 8 + 2 + 9 + 1 + 570 + 64 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (82915706413) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 96750688 + ... + 96751544.

Almost surely, 2^82915706412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82915706412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139565986560).

82915706412 is an abundant number, since it is smaller than the sum of its proper divisors (196216266708).

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

82915706412 is a wasteful number, since it uses less digits than its factorization.

82915706412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 82915706412 in words is "eighty-two billion, nine hundred fifteen million, seven hundred six thousand, four hundred twelve".