1185382138172 has 24 divisors (see below), whose sum is σ = 2200267386240. Its totient is φ = 557210562480.

The previous prime is 1185382138163. The next prime is 1185382138211. The reversal of 1185382138172 is 2718312835811.

It is a self number, because there is not a number n which added to its sum of digits gives 1185382138172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59521088 + ... + 59540999.

It is an arithmetic number, because the mean of its divisors is an integer number (91677807760).

Almost surely, 2^{1185382138172} is an apocalyptic number.

It is an amenable number.

1185382138172 is a deficient number, since it is larger than the sum of its proper divisors (1014885248068).

1185382138172 is a wasteful number, since it uses less digits than its factorization.

1185382138172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119062241 (or 119062239 counting only the distinct ones).

The product of its digits is 645120, while the sum is 50.

The spelling of 1185382138172 in words is "one trillion, one hundred eighty-five billion, three hundred eighty-two million, one hundred thirty-eight thousand, one hundred seventy-two".