2140875789849 has 6 divisors (see below), whose sum is σ = 3092376140906. Its totient is φ = 1427250526560.

The previous prime is 2140875789827. The next prime is 2140875789851. The reversal of 2140875789849 is 9489875780412.

2140875789849 is a `hidden beast` number, since 2 + 1 + 4 + 0 + 8 + 7 + 578 + 9 + 8 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2122537213449 + 18338576400 = 1456893^2 + 135420^2 .

It is not a de Polignac number, because 2140875789849 - 2²¹ = 2140873692697 is a prime.

It is a super-2 number, since 2×2140875789849² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140875789149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118937543872 + ... + 118937543889.

Almost surely, 2^{2140875789849} is an apocalyptic number.

It is an amenable number.

2140875789849 is a deficient number, since it is larger than the sum of its proper divisors (951500351057).

2140875789849 is a wasteful number, since it uses less digits than its factorization.

2140875789849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237875087767 (or 237875087764 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 72.

The spelling of 2140875789849 in words is "two trillion, one hundred forty billion, eight hundred seventy-five million, seven hundred eighty-nine thousand, eight hundred forty-nine".