81398063095 has 8 divisors (see below), whose sum is σ = 97765128864. Its totient is φ = 65060148384.

The previous prime is 81398063093. The next prime is 81398063111. The reversal of 81398063095 is 59036089318.

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

It is a cyclic number.

It is not a de Polignac number, because 81398063095 - 2¹ = 81398063093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81398063093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7281619 + ... + 7292788.

It is an arithmetic number, because the mean of its divisors is an integer number (12220641108).

Almost surely, 2^81398063095 is an apocalyptic number.

81398063095 is a deficient number, since it is larger than the sum of its proper divisors (16367065769).

81398063095 is a wasteful number, since it uses less digits than its factorization.

81398063095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14575529.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 81398063095 in words is "eighty-one billion, three hundred ninety-eight million, sixty-three thousand, ninety-five".