91369091356 has 12 divisors (see below), whose sum is σ = 161692493760. Its totient is φ = 45171236000.

The previous prime is 91369091351. The next prime is 91369091389. The reversal of 91369091356 is 65319096319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91369091351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128327020 + ... + 128327731.

It is an arithmetic number, because the mean of its divisors is an integer number (13474374480).

Almost surely, 2^91369091356 is an apocalyptic number.

It is an amenable number.

91369091356 is a deficient number, since it is larger than the sum of its proper divisors (70323402404).

91369091356 is a wasteful number, since it uses less digits than its factorization.

91369091356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256654844 (or 256654842 counting only the distinct ones).

The product of its (nonzero) digits is 1180980, while the sum is 52.

The spelling of 91369091356 in words is "ninety-one billion, three hundred sixty-nine million, ninety-one thousand, three hundred fifty-six".