81467580203 has 8 divisors (see below), whose sum is σ = 81558056736. Its totient is φ = 81377142400.

The previous prime is 81467580199. The next prime is 81467580221. The reversal of 81467580203 is 30208576418.

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 81467580203 - 2² = 81467580199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81467580503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6362738 + ... + 6375528.

It is an arithmetic number, because the mean of its divisors is an integer number (10194757092).

Almost surely, 2^81467580203 is an apocalyptic number.

81467580203 is a deficient number, since it is larger than the sum of its proper divisors (90476533).

81467580203 is a wasteful number, since it uses less digits than its factorization.

81467580203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19365.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 81467580203 in words is "eighty-one billion, four hundred sixty-seven million, five hundred eighty thousand, two hundred three".