1935794942139 has 16 divisors (see below), whose sum is σ = 2588668941312. Its totient is φ = 1286726293248.

The previous prime is 1935794942131. The next prime is 1935794942143. The reversal of 1935794942139 is 9312494975391.

It is not a de Polignac number, because 1935794942139 - 2³ = 1935794942131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1935794942139.

It is not an unprimeable number, because it can be changed into a prime (1935794942131) 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, 9539674 + ... + 9740480.

It is an arithmetic number, because the mean of its divisors is an integer number (161791808832).

Almost surely, 2^{1935794942139} is an apocalyptic number.

1935794942139 is a deficient number, since it is larger than the sum of its proper divisors (652873999173).

1935794942139 is a wasteful number, since it uses less digits than its factorization.

1935794942139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210266.

The product of its digits is 66134880, while the sum is 66.

The spelling of 1935794942139 in words is "one trillion, nine hundred thirty-five billion, seven hundred ninety-four million, nine hundred forty-two thousand, one hundred thirty-nine".