11891306797134 has 128 divisors (see below), whose sum is σ = 24862009159680. Its totient is φ = 3788706265344.

The previous prime is 11891306797127. The next prime is 11891306797169. The reversal of 11891306797134 is 43179760319811.

It is a super-2 number, since 2×11891306797134² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1661025447 + ... + 1661032605.

It is an arithmetic number, because the mean of its divisors is an integer number (194234446560).

Almost surely, 2^{11891306797134} is an apocalyptic number.

11891306797134 is an abundant number, since it is smaller than the sum of its proper divisors (12970702362546).

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

11891306797134 is a wasteful number, since it uses less digits than its factorization.

11891306797134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The spelling of 11891306797134 in words is "eleven trillion, eight hundred ninety-one billion, three hundred six million, seven hundred ninety-seven thousand, one hundred thirty-four".