2139042061178 has 16 divisors (see below), whose sum is σ = 3557631805920. Its totient is φ = 956352634800.

The previous prime is 2139042061157. The next prime is 2139042061193. The reversal of 2139042061178 is 8711602409312.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 796959188 + ... + 796961871.

It is an arithmetic number, because the mean of its divisors is an integer number (222351987870).

Almost surely, 2^{2139042061178} is an apocalyptic number.

2139042061178 is a deficient number, since it is larger than the sum of its proper divisors (1418589744742).

2139042061178 is a wasteful number, since it uses less digits than its factorization.

2139042061178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593921133.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 2139042061178 in words is "two trillion, one hundred thirty-nine billion, forty-two million, sixty-one thousand, one hundred seventy-eight".