91380303873 has 8 divisors (see below), whose sum is σ = 135378228000. Its totient is φ = 60920202564.

The previous prime is 91380303851. The next prime is 91380303913. The reversal of 91380303873 is 37830308319.

It is not a de Polignac number, because 91380303873 - 2⁹ = 91380303361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91380303823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692227823 + ... + 1692227876.

It is an arithmetic number, because the mean of its divisors is an integer number (16922278500).

Almost surely, 2^91380303873 is an apocalyptic number.

It is an amenable number.

91380303873 is a deficient number, since it is larger than the sum of its proper divisors (43997924127).

91380303873 is a wasteful number, since it uses less digits than its factorization.

91380303873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384455708 (or 3384455702 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 91380303873 in words is "ninety-one billion, three hundred eighty million, three hundred three thousand, eight hundred seventy-three".