91923393585378 has 32 divisors (see below), whose sum is σ = 184298650607232. Its totient is φ = 30565883836800.

The previous prime is 91923393585377. The next prime is 91923393585421. The reversal of 91923393585378 is 87358539332919.

It is not an unprimeable number, because it can be changed into a prime (91923393585377) 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, 2083126 + ... + 13718097.

It is an arithmetic number, because the mean of its divisors is an integer number (5759332831476).

Almost surely, 2^{91923393585378} is an apocalyptic number.

91923393585378 is an abundant number, since it is smaller than the sum of its proper divisors (92375257021854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91923393585378 is a wasteful number, since it uses less digits than its factorization.

91923393585378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15803610.

The product of its digits is 1322697600, while the sum is 75.

The spelling of 91923393585378 in words is "ninety-one trillion, nine hundred twenty-three billion, three hundred ninety-three million, five hundred eighty-five thousand, three hundred seventy-eight".