91116784803 has 16 divisors (see below), whose sum is σ = 132551424000. Its totient is φ = 55214827680.

The previous prime is 91116784799. The next prime is 91116784867. The reversal of 91116784803 is 30848761119.

It is not a de Polignac number, because 91116784803 - 2² = 91116784799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91116784303) 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, 66238 + ... + 431996.

It is an arithmetic number, because the mean of its divisors is an integer number (8284464000).

Almost surely, 2^91116784803 is an apocalyptic number.

91116784803 is a deficient number, since it is larger than the sum of its proper divisors (41434639197).

91116784803 is a wasteful number, since it uses less digits than its factorization.

91116784803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373322.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 91116784803 in words is "ninety-one billion, one hundred sixteen million, seven hundred eighty-four thousand, eight hundred three".