2143793087938 has 16 divisors (see below), whose sum is σ = 3247630661376. Its totient is φ = 1061250204400.

The previous prime is 2143793087923. The next prime is 2143793087959. The reversal of 2143793087938 is 8397803973412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143793087938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7005645 + ... + 7305247.

It is an arithmetic number, because the mean of its divisors is an integer number (202976916336).

Almost surely, 2^{2143793087938} is an apocalyptic number.

2143793087938 is a deficient number, since it is larger than the sum of its proper divisors (1103837573438).

2143793087938 is a wasteful number, since it uses less digits than its factorization.

2143793087938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335129.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 2143793087938 in words is "two trillion, one hundred forty-three billion, seven hundred ninety-three million, eighty-seven thousand, nine hundred thirty-eight".