91045410047 has 4 divisors (see below), whose sum is σ = 95003906160. Its totient is φ = 87086913936.

The previous prime is 91045410023. The next prime is 91045410073. The reversal of 91045410047 is 74001454019.

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 91045410047 - 2¹⁰ = 91045409023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91045409989 and 91045410016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91045410017) 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 3 ways as a sum of consecutive naturals, for example, 1979248022 + ... + 1979248067.

It is an arithmetic number, because the mean of its divisors is an integer number (23750976540).

Almost surely, 2^91045410047 is an apocalyptic number.

91045410047 is a deficient number, since it is larger than the sum of its proper divisors (3958496113).

91045410047 is a wasteful number, since it uses less digits than its factorization.

91045410047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958496112.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 91045410047 in words is "ninety-one billion, forty-five million, four hundred ten thousand, forty-seven".