91766000047 has 16 divisors (see below), whose sum is σ = 97430400000. Its totient is φ = 86242726944.

The previous prime is 91766000003. The next prime is 91766000059. The reversal of 91766000047 is 74000066719.

It is a cyclic number.

It is not a de Polignac number, because 91766000047 - 2¹⁹ = 91765475759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91765999973 and 91766000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91766000147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2695729 + ... + 2729557.

It is an arithmetic number, because the mean of its divisors is an integer number (6089400000).

Almost surely, 2^91766000047 is an apocalyptic number.

91766000047 is a deficient number, since it is larger than the sum of its proper divisors (5664399953).

91766000047 is a wasteful number, since it uses less digits than its factorization.

91766000047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35910.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 91766000047 in words is "ninety-one billion, seven hundred sixty-six million, forty-seven", and thus it is an aban number.