91286316903 has 16 divisors (see below), whose sum is σ = 122395971456. Its totient is φ = 60517595040.

The previous prime is 91286316893. The next prime is 91286316937. The reversal of 91286316903 is 30961368219.

It is not a de Polignac number, because 91286316903 - 2⁵ = 91286316871 is a prime.

It is a super-2 number, since 2×91286316903² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91286316973) 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, 690625 + ... + 812117.

It is an arithmetic number, because the mean of its divisors is an integer number (7649748216).

Almost surely, 2^91286316903 is an apocalyptic number.

91286316903 is a deficient number, since it is larger than the sum of its proper divisors (31109654553).

91286316903 is a wasteful number, since it uses less digits than its factorization.

91286316903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122894.

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 91286316903 in words is "ninety-one billion, two hundred eighty-six million, three hundred sixteen thousand, nine hundred three".