1183942771138 has 32 divisors (see below), whose sum is σ = 1829806824384. Its totient is φ = 574112308032.

The previous prime is 1183942771117. The next prime is 1183942771177. The reversal of 1183942771138 is 8311772493811.

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 15 ways as a sum of consecutive naturals, for example, 54834381 + ... + 54855967.

It is an arithmetic number, because the mean of its divisors is an integer number (57181463262).

Almost surely, 2^{1183942771138} is an apocalyptic number.

1183942771138 is a deficient number, since it is larger than the sum of its proper divisors (645864053246).

1183942771138 is a wasteful number, since it uses less digits than its factorization.

1183942771138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23986.

The product of its digits is 2032128, while the sum is 55.

The spelling of 1183942771138 in words is "one trillion, one hundred eighty-three billion, nine hundred forty-two million, seven hundred seventy-one thousand, one hundred thirty-eight".