81482958222 has 32 divisors (see below), whose sum is σ = 170143303680. Its totient is φ = 25966031520.

The previous prime is 81482958173. The next prime is 81482958239. The reversal of 81482958222 is 22285928418.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98179 + ... + 415457.

It is an arithmetic number, because the mean of its divisors is an integer number (5316978240).

Almost surely, 2^81482958222 is an apocalyptic number.

81482958222 is an abundant number, since it is smaller than the sum of its proper divisors (88660345458).

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

81482958222 is a wasteful number, since it uses less digits than its factorization.

81482958222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319168.

The product of its digits is 1474560, while the sum is 51.

The spelling of 81482958222 in words is "eighty-one billion, four hundred eighty-two million, nine hundred fifty-eight thousand, two hundred twenty-two".