91875740537493 has 96 divisors (see below), whose sum is σ = 153232112517120. Its totient is φ = 52461837648000.

The previous prime is 91875740537459. The next prime is 91875740537543. The reversal of 91875740537493 is 39473504757819.

91875740537493 is a `hidden beast` number, since 9 + 1 + 8 + 7 + 5 + 7 + 40 + 537 + 49 + 3 = 666.

It is not a de Polignac number, because 91875740537493 - 2¹⁴ = 91875740521109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91875740537593) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 415577323 + ... + 415798343.

It is an arithmetic number, because the mean of its divisors is an integer number (1596167838720).

Almost surely, 2^{91875740537493} is an apocalyptic number.

It is an amenable number.

91875740537493 is a deficient number, since it is larger than the sum of its proper divisors (61356371979627).

91875740537493 is a wasteful number, since it uses less digits than its factorization.

91875740537493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222271 (or 222268 counting only the distinct ones).

The product of its (nonzero) digits is 800150400, while the sum is 72.

The spelling of 91875740537493 in words is "ninety-one trillion, eight hundred seventy-five billion, seven hundred forty million, five hundred thirty-seven thousand, four hundred ninety-three".