91843433433 has 6 divisors (see below), whose sum is σ = 132662737194. Its totient is φ = 61228955616.

The previous prime is 91843433401. The next prime is 91843433447. The reversal of 91843433433 is 33433434819.

It is a happy number.

91843433433 is a `hidden beast` number, since 9 + 184 + 3 + 4 + 33 + 433 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91752650649 + 90782784 = 302907^2 + 9528^2 .

It is not a de Polignac number, because 91843433433 - 2⁵ = 91843433401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91843433333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5102412960 + ... + 5102412977.

It is an arithmetic number, because the mean of its divisors is an integer number (22110456199).

Almost surely, 2^91843433433 is an apocalyptic number.

It is an amenable number.

91843433433 is a deficient number, since it is larger than the sum of its proper divisors (40819303761).

91843433433 is a wasteful number, since it uses less digits than its factorization.

91843433433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10204825943 (or 10204825940 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 45.

The spelling of 91843433433 in words is "ninety-one billion, eight hundred forty-three million, four hundred thirty-three thousand, four hundred thirty-three".