81453223114 has 8 divisors (see below), whose sum is σ = 122181108228. Its totient is φ = 40726187040.

The previous prime is 81453223087. The next prime is 81453223127. The reversal of 81453223114 is 41132235418.

It can be written as a sum of positive squares in 2 ways, for example, as 76892517025 + 4560706089 = 277295^2 + 67533^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 81453223114.

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, 153934 + ... + 431974.

Almost surely, 2^81453223114 is an apocalyptic number.

81453223114 is a deficient number, since it is larger than the sum of its proper divisors (40727885114).

81453223114 is a wasteful number, since it uses less digits than its factorization.

81453223114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424520.

The product of its digits is 23040, while the sum is 34.

The spelling of 81453223114 in words is "eighty-one billion, four hundred fifty-three million, two hundred twenty-three thousand, one hundred fourteen".