1118571610986 has 24 divisors (see below), whose sum is σ = 2566134872964. Its totient is φ = 350924426880.

The previous prime is 1118571610913. The next prime is 1118571610993. The reversal of 1118571610986 is 6890161758111.

1118571610986 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 571 + 61 + 0 + 9 + 8 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1114344140625 + 4227470361 = 1055625^2 + 65019^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1827731085 + ... + 1827731696.

Almost surely, 2^{1118571610986} is an apocalyptic number.

1118571610986 is an abundant number, since it is smaller than the sum of its proper divisors (1447563261978).

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

1118571610986 is a wasteful number, since it uses less digits than its factorization.

1118571610986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655462806 (or 3655462803 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 54.

The spelling of 1118571610986 in words is "one trillion, one hundred eighteen billion, five hundred seventy-one million, six hundred ten thousand, nine hundred eighty-six".