91027504612371 has 16 divisors (see below), whose sum is σ = 121390128193536. Its totient is φ = 60674942626176.

The previous prime is 91027504612351. The next prime is 91027504612411. The reversal of 91027504612371 is 17321640572019.

It is not a de Polignac number, because 91027504612371 - 2¹⁹ = 91027504088083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91027504612371.

It is not an unprimeable number, because it can be changed into a prime (91027504612351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985281246 + ... + 985373628.

It is an arithmetic number, because the mean of its divisors is an integer number (7586883012096).

Almost surely, 2^{91027504612371} is an apocalyptic number.

91027504612371 is a deficient number, since it is larger than the sum of its proper divisors (30362623581165).

91027504612371 is a wasteful number, since it uses less digits than its factorization.

91027504612371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143282.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 91027504612371 in words is "ninety-one trillion, twenty-seven billion, five hundred four million, six hundred twelve thousand, three hundred seventy-one".