82449193574 has 48 divisors (see below), whose sum is σ = 138571231680. Its totient is φ = 36757762800.

The previous prime is 82449193573. The next prime is 82449193613. The reversal of 82449193574 is 47539194428.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82449193573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2777189 + ... + 2806719.

It is an arithmetic number, because the mean of its divisors is an integer number (2886900660).

Almost surely, 2^82449193574 is an apocalyptic number.

82449193574 is a deficient number, since it is larger than the sum of its proper divisors (56122038106).

82449193574 is a wasteful number, since it uses less digits than its factorization.

82449193574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29777 (or 29766 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The spelling of 82449193574 in words is "eighty-two billion, four hundred forty-nine million, one hundred ninety-three thousand, five hundred seventy-four".