82699605912 has 256 divisors, whose sum is σ = 259953131520. Its totient is φ = 21299097600.

The previous prime is 82699605899. The next prime is 82699605931. The reversal of 82699605912 is 21950699628.

It is a super-4 number, since 4×82699605912⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215925673 + ... + 215926055.

It is an arithmetic number, because the mean of its divisors is an integer number (1015441920).

Almost surely, 2^82699605912 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 82699605912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129976565760).

82699605912 is an abundant number, since it is smaller than the sum of its proper divisors (177253525608).

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

82699605912 is a wasteful number, since it uses less digits than its factorization.

82699605912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 57.

The spelling of 82699605912 in words is "eighty-two billion, six hundred ninety-nine million, six hundred five thousand, nine hundred twelve".