91858427514 has 48 divisors (see below), whose sum is σ = 237457166400. Its totient is φ = 26245264248.

The previous prime is 91858427513. The next prime is 91858427537. The reversal of 91858427514 is 41572485819.

91858427514 is a `hidden beast` number, since 9 + 1 + 8 + 584 + 2 + 7 + 51 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91858427513) 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 23 ways as a sum of consecutive naturals, for example, 17355334 + ... + 17360625.

It is an arithmetic number, because the mean of its divisors is an integer number (4947024300).

Almost surely, 2^91858427514 is an apocalyptic number.

91858427514 is an abundant number, since it is smaller than the sum of its proper divisors (145598738886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91858427514 is a wasteful number, since it uses less digits than its factorization.

91858427514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34715984 (or 34715971 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 91858427514 in words is "ninety-one billion, eight hundred fifty-eight million, four hundred twenty-seven thousand, five hundred fourteen".