82449367818 has 16 divisors (see below), whose sum is σ = 164933662080. Its totient is φ = 27477301536.

The previous prime is 82449367817. The next prime is 82449367823. The reversal of 82449367818 is 81876394428.

It is a happy number.

It is a super-2 number, since 2×82449367818² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82449367817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424530 + ... + 1481277.

It is an arithmetic number, because the mean of its divisors is an integer number (10308353880).

Almost surely, 2^82449367818 is an apocalyptic number.

82449367818 is an abundant number, since it is smaller than the sum of its proper divisors (82484294262).

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

82449367818 is a wasteful number, since it uses less digits than its factorization.

82449367818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910541.

The product of its digits is 18579456, while the sum is 60.

The spelling of 82449367818 in words is "eighty-two billion, four hundred forty-nine million, three hundred sixty-seven thousand, eight hundred eighteen".