2118867380141 has 4 divisors (see below), whose sum is σ = 2120424227484. Its totient is φ = 2117310532800.

The previous prime is 2118867380131. The next prime is 2118867380153. The reversal of 2118867380141 is 1410837688112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 802719234916 + 1316148145225 = 895946^2 + 1147235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2118867380141 - 2¹⁴ = 2118867363757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2118867380141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118867380131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778421630 + ... + 778424351.

It is an arithmetic number, because the mean of its divisors is an integer number (530106056871).

Almost surely, 2^{2118867380141} is an apocalyptic number.

It is an amenable number.

2118867380141 is a deficient number, since it is larger than the sum of its proper divisors (1556847343).

2118867380141 is a wasteful number, since it uses less digits than its factorization.

2118867380141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556847342.

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 2118867380141 in words is "two trillion, one hundred eighteen billion, eight hundred sixty-seven million, three hundred eighty thousand, one hundred forty-one".