2134849918845 has 16 divisors (see below), whose sum is σ = 3903725566080. Its totient is φ = 975931391424.

The previous prime is 2134849918843. The next prime is 2134849918867. The reversal of 2134849918845 is 5488199484312.

It is not a de Polignac number, because 2134849918845 - 2¹ = 2134849918843 is a prime.

It is a super-2 number, since 2×2134849918845² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134849918841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10165951890 + ... + 10165952099.

It is an arithmetic number, because the mean of its divisors is an integer number (243982847880).

Almost surely, 2^{2134849918845} is an apocalyptic number.

It is an amenable number.

2134849918845 is a deficient number, since it is larger than the sum of its proper divisors (1768875647235).

2134849918845 is a wasteful number, since it uses less digits than its factorization.

2134849918845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20331904004.

The product of its digits is 79626240, while the sum is 66.

The spelling of 2134849918845 in words is "two trillion, one hundred thirty-four billion, eight hundred forty-nine million, nine hundred eighteen thousand, eight hundred forty-five".