2148718049511 has 16 divisors (see below), whose sum is σ = 3309255606528. Its totient is φ = 1225650224000.

The previous prime is 2148718049507. The next prime is 2148718049531. The reversal of 2148718049511 is 1159408178412.

It is not a de Polignac number, because 2148718049511 - 2² = 2148718049507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148718049501) 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 15 ways as a sum of consecutive naturals, for example, 1915077915 + ... + 1915079036.

It is an arithmetic number, because the mean of its divisors is an integer number (206828475408).

Almost surely, 2^{2148718049511} is an apocalyptic number.

2148718049511 is a deficient number, since it is larger than the sum of its proper divisors (1160537557017).

2148718049511 is a wasteful number, since it uses less digits than its factorization.

2148718049511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830156982.

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 2148718049511 in words is "two trillion, one hundred forty-eight billion, seven hundred eighteen million, forty-nine thousand, five hundred eleven".