11886889542 has 16 divisors (see below), whose sum is σ = 25935031872. Its totient is φ = 3602087720.

The previous prime is 11886889507. The next prime is 11886889591. The reversal of 11886889542 is 24598868811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90052128 + ... + 90052259.

It is an arithmetic number, because the mean of its divisors is an integer number (1620939492).

Almost surely, 2^11886889542 is an apocalyptic number.

11886889542 is an abundant number, since it is smaller than the sum of its proper divisors (14048142330).

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

11886889542 is a wasteful number, since it uses less digits than its factorization.

11886889542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180104403.

The product of its digits is 8847360, while the sum is 60.

The spelling of 11886889542 in words is "eleven billion, eight hundred eighty-six million, eight hundred eighty-nine thousand, five hundred forty-two".