91922054443 has 8 divisors (see below), whose sum is σ = 92013290096. Its totient is φ = 91830866400.

The previous prime is 91922054431. The next prime is 91922054507. The reversal of 91922054443 is 34445022919.

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-91922054443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91922054443.

It is not an unprimeable number, because it can be changed into a prime (91922054423) 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 7 ways as a sum of consecutive naturals, for example, 4745005 + ... + 4764337.

It is an arithmetic number, because the mean of its divisors is an integer number (11501661262).

Almost surely, 2^91922054443 is an apocalyptic number.

91922054443 is a deficient number, since it is larger than the sum of its proper divisors (91235653).

91922054443 is a wasteful number, since it uses less digits than its factorization.

91922054443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23805.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 91922054443 in words is "ninety-one billion, nine hundred twenty-two million, fifty-four thousand, four hundred forty-three".