1111869808140 has 192 divisors, whose sum is σ = 3845219245056. Its totient is φ = 233763038208.

The previous prime is 1111869808129. The next prime is 1111869808141. The reversal of 1111869808140 is 418089681111.

It is a self number, because there is not a number n which added to its sum of digits gives 1111869808140.

It is not an unprimeable number, because it can be changed into a prime (1111869808141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1185394 + ... + 1904966.

It is an arithmetic number, because the mean of its divisors is an integer number (20027183568).

Almost surely, 2^{1111869808140} is an apocalyptic number.

1111869808140 is a gapful number since it is divisible by the number (10) 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 1111869808140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1922609622528).

1111869808140 is an abundant number, since it is smaller than the sum of its proper divisors (2733349436916).

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

1111869808140 is a wasteful number, since it uses less digits than its factorization.

1111869808140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719888 (or 719886 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 48.

The spelling of 1111869808140 in words is "one trillion, one hundred eleven billion, eight hundred sixty-nine million, eight hundred eight thousand, one hundred forty".