81468633214 has 8 divisors (see below), whose sum is σ = 129391358688. Its totient is φ = 38338180320.

The previous prime is 81468633203. The next prime is 81468633217. The reversal of 81468633214 is 41233686418.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81468633217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198068102 + ... + 1198068169.

It is an arithmetic number, because the mean of its divisors is an integer number (16173919836).

Almost surely, 2^81468633214 is an apocalyptic number.

81468633214 is a deficient number, since it is larger than the sum of its proper divisors (47922725474).

81468633214 is a wasteful number, since it uses less digits than its factorization.

81468633214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396136290.

The product of its digits is 663552, while the sum is 46.

The spelling of 81468633214 in words is "eighty-one billion, four hundred sixty-eight million, six hundred thirty-three thousand, two hundred fourteen".