11887877140 has 12 divisors (see below), whose sum is σ = 24964542036. Its totient is φ = 4755150848.

The previous prime is 11887877093. The next prime is 11887877173. The reversal of 11887877140 is 4177878811.

It can be written as a sum of positive squares in 2 ways, for example, as 3111185284 + 8776691856 = 55778^2 + 93684^2 .

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 3 ways as a sum of consecutive naturals, for example, 297196909 + ... + 297196948.

It is an arithmetic number, because the mean of its divisors is an integer number (2080378503).

Almost surely, 2^11887877140 is an apocalyptic number.

11887877140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11887877140 is an abundant number, since it is smaller than the sum of its proper divisors (13076664896).

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

11887877140 is a wasteful number, since it uses less digits than its factorization.

11887877140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594393866 (or 594393864 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 52.

It can be divided in two parts, 118878771 and 40, that added together give a palindrome (118878811).

The spelling of 11887877140 in words is "eleven billion, eight hundred eighty-seven million, eight hundred seventy-seven thousand, one hundred forty".