81467018353 has 8 divisors (see below), whose sum is σ = 93784764672. Its totient is φ = 69319172256.

The previous prime is 81467018317. The next prime is 81467018377. The reversal of 81467018353 is 35381076418.

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 81467018353 - 2³³ = 72877083761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81467018383) 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, 42474025 + ... + 42475942.

It is an arithmetic number, because the mean of its divisors is an integer number (11723095584).

Almost surely, 2^81467018353 is an apocalyptic number.

It is an amenable number.

81467018353 is a deficient number, since it is larger than the sum of its proper divisors (12317746319).

81467018353 is a wasteful number, since it uses less digits than its factorization.

81467018353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84950111.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 81467018353 in words is "eighty-one billion, four hundred sixty-seven million, eighteen thousand, three hundred fifty-three".