91194936573 has 16 divisors (see below), whose sum is σ = 131122857600. Its totient is φ = 56044411584.

The previous prime is 91194936563. The next prime is 91194936607. The reversal of 91194936573 is 37563949119.

It is not a de Polignac number, because 91194936573 - 2⁵ = 91194936541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91194936563) 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, 1544598 + ... + 1602551.

It is an arithmetic number, because the mean of its divisors is an integer number (8195178600).

Almost surely, 2^91194936573 is an apocalyptic number.

It is an amenable number.

91194936573 is a deficient number, since it is larger than the sum of its proper divisors (39927921027).

91194936573 is a wasteful number, since it uses less digits than its factorization.

91194936573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147908.

The product of its digits is 5511240, while the sum is 57.

The spelling of 91194936573 in words is "ninety-one billion, one hundred ninety-four million, nine hundred thirty-six thousand, five hundred seventy-three".