91953982849 has 8 divisors (see below), whose sum is σ = 93585768768. Its totient is φ = 90331548720.

The previous prime is 91953982837. The next prime is 91953982853. The reversal of 91953982849 is 94828935919.

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 91953982849 - 2⁷ = 91953982721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91953902849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2318107 + ... + 2357440.

It is an arithmetic number, because the mean of its divisors is an integer number (11698221096).

Almost surely, 2^91953982849 is an apocalyptic number.

It is an amenable number.

91953982849 is a deficient number, since it is larger than the sum of its proper divisors (1631785919).

91953982849 is a wasteful number, since it uses less digits than its factorization.

91953982849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675895.

The product of its digits is 50388480, while the sum is 67.

The spelling of 91953982849 in words is "ninety-one billion, nine hundred fifty-three million, nine hundred eighty-two thousand, eight hundred forty-nine".