1186420008636 has 36 divisors (see below), whose sum is σ = 3001028524312. Its totient is φ = 395206647264.

The previous prime is 1186420008617. The next prime is 1186420008661. The reversal of 1186420008636 is 6368000246811.

1186420008636 is a `hidden beast` number, since 1 + 1 + 8 + 6 + 4 + 2 + 0 + 0 + 0 + 8 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1186420008591 and 1186420008600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11057911 + ... + 11164686.

Almost surely, 2^{1186420008636} is an apocalyptic number.

It is an amenable number.

1186420008636 is an abundant number, since it is smaller than the sum of its proper divisors (1814608515676).

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

1186420008636 is a wasteful number, since it uses less digits than its factorization.

1186420008636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22224090 (or 22224085 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 1186420008636 in words is "one trillion, one hundred eighty-six billion, four hundred twenty million, eight thousand, six hundred thirty-six".