82149180428 has 24 divisors (see below), whose sum is σ = 164306608032. Its totient is φ = 35205024384.

The previous prime is 82149180419. The next prime is 82149180433. The reversal of 82149180428 is 82408194128.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603326 + ... + 726842.

It is an arithmetic number, because the mean of its divisors is an integer number (6846108668).

Almost surely, 2^82149180428 is an apocalyptic number.

It is an amenable number.

82149180428 is an abundant number, since it is smaller than the sum of its proper divisors (82157427604).

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

82149180428 is a wasteful number, since it uses less digits than its factorization.

82149180428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147281 (or 147279 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 82149180428 in words is "eighty-two billion, one hundred forty-nine million, one hundred eighty thousand, four hundred twenty-eight".