91965098881 has 8 divisors (see below), whose sum is σ = 94462149824. Its totient is φ = 89468653680.

The previous prime is 91965098873. The next prime is 91965098887. The reversal of 91965098881 is 18889056919.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91965098881 - 2³ = 91965098873 is a prime.

It is a super-3 number, since 3×91965098881³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91965098887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165196 + ... + 459586.

It is an arithmetic number, because the mean of its divisors is an integer number (11807768728).

Almost surely, 2^91965098881 is an apocalyptic number.

It is an amenable number.

91965098881 is a deficient number, since it is larger than the sum of its proper divisors (2497050943).

91965098881 is a wasteful number, since it uses less digits than its factorization.

91965098881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302871.

The product of its (nonzero) digits is 11197440, while the sum is 64.

The spelling of 91965098881 in words is "ninety-one billion, nine hundred sixty-five million, ninety-eight thousand, eight hundred eighty-one".