82811674472388 has 96 divisors (see below), whose sum is σ = 213523335131904. Its totient is φ = 24846556213248.

The previous prime is 82811674472381. The next prime is 82811674472431. The reversal of 82811674472388 is 88327447611828.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (82811674472381) 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, 27750706 + ... + 30589622.

It is an arithmetic number, because the mean of its divisors is an integer number (2224201407624).

Almost surely, 2^{82811674472388} 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 82811674472388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106761667565952).

82811674472388 is an abundant number, since it is smaller than the sum of its proper divisors (130711660659516).

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

82811674472388 is a wasteful number, since it uses less digits than its factorization.

82811674472388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845181 (or 2845179 counting only the distinct ones).

The product of its digits is 231211008, while the sum is 69.

The spelling of 82811674472388 in words is "eighty-two trillion, eight hundred eleven billion, six hundred seventy-four million, four hundred seventy-two thousand, three hundred eighty-eight".