11878949169594 has 96 divisors (see below), whose sum is σ = 27777754040400. Its totient is φ = 3647125647360.

The previous prime is 11878949169559. The next prime is 11878949169599. The reversal of 11878949169594 is 49596194987811.

11878949169594 is a `hidden beast` number, since 1 + 1 + 8 + 7 + 8 + 9 + 4 + 9 + 16 + 9 + 594 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 4828729368969 + 7050219800625 = 2197437^2 + 2655225^2 .

It is a super-2 number, since 2×11878949169594² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11878949169599) 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 47 ways as a sum of consecutive naturals, for example, 605780862 + ... + 605800470.

Almost surely, 2^{11878949169594} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11878949169594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13888877020200).

11878949169594 is an abundant number, since it is smaller than the sum of its proper divisors (15898804870806).

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

11878949169594 is a wasteful number, since it uses less digits than its factorization.

11878949169594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25120 (or 25117 counting only the distinct ones).

The product of its digits is 1410877440, while the sum is 81.

The spelling of 11878949169594 in words is "eleven trillion, eight hundred seventy-eight billion, nine hundred forty-nine million, one hundred sixty-nine thousand, five hundred ninety-four".