91340587260 has 144 divisors (see below), whose sum is σ = 300280964256. Its totient is φ = 22340537856.

The previous prime is 91340587207. The next prime is 91340587279. The reversal of 91340587260 is 6278504319.

91340587260 is a `hidden beast` number, since 9 + 1 + 3 + 4 + 0 + 587 + 2 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243067 + ... + 491693.

It is an arithmetic number, because the mean of its divisors is an integer number (2085284474).

It is a 1-persistent number, because it is pandigital, but 2⋅91340587260 = 182681174520 is not.

Almost surely, 2^91340587260 is an apocalyptic number.

91340587260 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91340587260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150140482128).

91340587260 is an abundant number, since it is smaller than the sum of its proper divisors (208940376996).

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

91340587260 is a wasteful number, since it uses less digits than its factorization.

91340587260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248812 (or 248807 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 91340587260 in words is "ninety-one billion, three hundred forty million, five hundred eighty-seven thousand, two hundred sixty".