81874449482 has 8 divisors (see below), whose sum is σ = 140356199136. Its totient is φ = 35089049772.

The previous prime is 81874449443. The next prime is 81874449499. The reversal of 81874449482 is 28494447818.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2924087468 + ... + 2924087495.

It is an arithmetic number, because the mean of its divisors is an integer number (17544524892).

Almost surely, 2^81874449482 is an apocalyptic number.

81874449482 is a deficient number, since it is larger than the sum of its proper divisors (58481749654).

81874449482 is a wasteful number, since it uses less digits than its factorization.

81874449482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848174972.

The product of its digits is 16515072, while the sum is 59.

The spelling of 81874449482 in words is "eighty-one billion, eight hundred seventy-four million, four hundred forty-nine thousand, four hundred eighty-two".