91096356831 has 16 divisors (see below), whose sum is σ = 121921334400. Its totient is φ = 60501561120.

The previous prime is 91096356823. The next prime is 91096356833. The reversal of 91096356831 is 13865369019.

It is not a de Polignac number, because 91096356831 - 2³ = 91096356823 is a prime.

It is a super-2 number, since 2×91096356831² (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 (91096356833) 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, 826620 + ... + 930318.

It is an arithmetic number, because the mean of its divisors is an integer number (7620083400).

Almost surely, 2^91096356831 is an apocalyptic number.

91096356831 is a deficient number, since it is larger than the sum of its proper divisors (30824977569).

91096356831 is a wasteful number, since it uses less digits than its factorization.

91096356831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104806.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 91096356831 in words is "ninety-one billion, ninety-six million, three hundred fifty-six thousand, eight hundred thirty-one".