91929812195 has 8 divisors (see below), whose sum is σ = 118801603536. Its totient is φ = 67886630496.

The previous prime is 91929812189. The next prime is 91929812207. The reversal of 91929812195 is 59121892919.

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 91929812195 - 2¹⁸ = 91929550051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91929812195.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707152337 + ... + 707152466.

It is an arithmetic number, because the mean of its divisors is an integer number (14850200442).

Almost surely, 2^91929812195 is an apocalyptic number.

91929812195 is a deficient number, since it is larger than the sum of its proper divisors (26871791341).

91929812195 is a wasteful number, since it uses less digits than its factorization.

91929812195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414304821.

The product of its digits is 1049760, while the sum is 56.

The spelling of 91929812195 in words is "ninety-one billion, nine hundred twenty-nine million, eight hundred twelve thousand, one hundred ninety-five".