2139384821673 has 16 divisors (see below), whose sum is σ = 3111869085696. Its totient is φ = 1296581604240.

The previous prime is 2139384821653. The next prime is 2139384821683. The reversal of 2139384821673 is 3761284839312.

It is not a de Polignac number, because 2139384821673 - 2²⁸ = 2139116386217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2139384821653) 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, 2882236 + ... + 3547682.

It is an arithmetic number, because the mean of its divisors is an integer number (194491817856).

Almost surely, 2^{2139384821673} is an apocalyptic number.

It is an amenable number.

2139384821673 is a deficient number, since it is larger than the sum of its proper divisors (972484264023).

2139384821673 is a wasteful number, since it uses less digits than its factorization.

2139384821673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762884.

The product of its digits is 10450944, while the sum is 57.

The spelling of 2139384821673 in words is "two trillion, one hundred thirty-nine billion, three hundred eighty-four million, eight hundred twenty-one thousand, six hundred seventy-three".