1186082907138 has 12 divisors (see below), whose sum is σ = 2569846298838. Its totient is φ = 395360969040.

The previous prime is 1186082907133. The next prime is 1186082907151. The reversal of 1186082907138 is 8317092806811.

1186082907138 is a `hidden beast` number, since 1 + 1 + 8 + 608 + 29 + 0 + 7 + 1 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1070858641329 + 115224265809 = 1034823^2 + 339447^2 .

It is not an unprimeable number, because it can be changed into a prime (1186082907133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32946747403 + ... + 32946747438.

Almost surely, 2^{1186082907138} is an apocalyptic number.

1186082907138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1186082907138 is an abundant number, since it is smaller than the sum of its proper divisors (1383763391700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1186082907138 is a wasteful number, since it uses less digits than its factorization.

1186082907138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65893494849 (or 65893494846 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 1186082907138 in words is "one trillion, one hundred eighty-six billion, eighty-two million, nine hundred seven thousand, one hundred thirty-eight".