91104949312 has 28 divisors (see below), whose sum is σ = 194693030476. Its totient is φ = 42048437760.

The previous prime is 91104949291. The next prime is 91104949367. The reversal of 91104949312 is 21394940119.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48922361856 + 42182587456 = 221184^2 + 205384^2 .

It is a super-2 number, since 2×91104949312² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54749739 + ... + 54751402.

It is an arithmetic number, because the mean of its divisors is an integer number (6953322517).

Almost surely, 2^91104949312 is an apocalyptic number.

It is an amenable number.

91104949312 is an abundant number, since it is smaller than the sum of its proper divisors (103588081164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91104949312 is a wasteful number, since it uses less digits than its factorization.

91104949312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109501166 (or 109501156 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 91104949312 in words is "ninety-one billion, one hundred four million, nine hundred forty-nine thousand, three hundred twelve".