91432853249 has 8 divisors (see below), whose sum is σ = 94749554688. Its totient is φ = 88139105280.

The previous prime is 91432853191. The next prime is 91432853257. The reversal of 91432853249 is 94235823419.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91432853249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91432853197 and 91432853206.

It is not an unprimeable number, because it can be changed into a prime (91432852249) 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, 5730257 + ... + 5746190.

It is an arithmetic number, because the mean of its divisors is an integer number (11843694336).

Almost surely, 2^91432853249 is an apocalyptic number.

It is an amenable number.

91432853249 is a deficient number, since it is larger than the sum of its proper divisors (3316701439).

91432853249 is a wasteful number, since it uses less digits than its factorization.

91432853249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11476735.

The product of its digits is 1866240, while the sum is 50.

The spelling of 91432853249 in words is "ninety-one billion, four hundred thirty-two million, eight hundred fifty-three thousand, two hundred forty-nine".