81011484467 has 4 divisors (see below), whose sum is σ = 81014588616. Its totient is φ = 81008380320.

The previous prime is 81011484461. The next prime is 81011484527. The reversal of 81011484467 is 76448411018.

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 81011484467 - 2⁴ = 81011484451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81011484461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512593 + ... + 1565234.

It is an arithmetic number, because the mean of its divisors is an integer number (20253647154).

Almost surely, 2^81011484467 is an apocalyptic number.

81011484467 is a deficient number, since it is larger than the sum of its proper divisors (3104149).

81011484467 is a wasteful number, since it uses less digits than its factorization.

81011484467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104148.

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 81011484467 in words is "eighty-one billion, eleven million, four hundred eighty-four thousand, four hundred sixty-seven".