91893065846 has 4 divisors (see below), whose sum is σ = 137839598772. Its totient is φ = 45946532922.

The previous prime is 91893065809. The next prime is 91893065851. The reversal of 91893065846 is 64856039819.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64856039819 = 1733 ⋅37424143.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22973266460 + ... + 22973266463.

It is an arithmetic number, because the mean of its divisors is an integer number (34459899693).

Almost surely, 2^91893065846 is an apocalyptic number.

91893065846 is a deficient number, since it is larger than the sum of its proper divisors (45946532926).

91893065846 is a wasteful number, since it uses less digits than its factorization.

91893065846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45946532925.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 91893065846 in words is "ninety-one billion, eight hundred ninety-three million, sixty-five thousand, eight hundred forty-six".