81034050667 has 8 divisors (see below), whose sum is σ = 81144475776. Its totient is φ = 80923695552.

The previous prime is 81034050523. The next prime is 81034050679. The reversal of 81034050667 is 76605043018.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81034050667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81034050767) 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 7 ways as a sum of consecutive naturals, for example, 2549958 + ... + 2581540.

It is an arithmetic number, because the mean of its divisors is an integer number (10143059472).

Almost surely, 2^81034050667 is an apocalyptic number.

81034050667 is a deficient number, since it is larger than the sum of its proper divisors (110425109).

81034050667 is a wasteful number, since it uses less digits than its factorization.

81034050667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34997.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 81034050667 in words is "eighty-one billion, thirty-four million, fifty thousand, six hundred sixty-seven".