82154248872 has 128 divisors (see below), whose sum is σ = 217541894400. Its totient is φ = 25802016768.

The previous prime is 82154248871. The next prime is 82154248877. The reversal of 82154248872 is 27884245128.

It is not an unprimeable number, because it can be changed into a prime (82154248871) 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, 13605438 + ... + 13611474.

It is an arithmetic number, because the mean of its divisors is an integer number (1699546050).

Almost surely, 2^82154248872 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 82154248872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108770947200).

82154248872 is an abundant number, since it is smaller than the sum of its proper divisors (135387645528).

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

82154248872 is a wasteful number, since it uses less digits than its factorization.

82154248872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435 (or 6431 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 51.

The spelling of 82154248872 in words is "eighty-two billion, one hundred fifty-four million, two hundred forty-eight thousand, eight hundred seventy-two".