81483794367 has 4 divisors (see below), whose sum is σ = 108645059160. Its totient is φ = 54322529576.

The previous prime is 81483794351. The next prime is 81483794369. The reversal of 81483794367 is 76349738418.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 81483794367 - 2⁴ = 81483794351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 81483794367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81483794369) 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, 13580632392 + ... + 13580632397.

It is an arithmetic number, because the mean of its divisors is an integer number (27161264790).

Almost surely, 2^81483794367 is an apocalyptic number.

81483794367 is a deficient number, since it is larger than the sum of its proper divisors (27161264793).

81483794367 is a wasteful number, since it uses less digits than its factorization.

81483794367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27161264792.

The product of its digits is 24385536, while the sum is 60.

The spelling of 81483794367 in words is "eighty-one billion, four hundred eighty-three million, seven hundred ninety-four thousand, three hundred sixty-seven".