1186163478478 has 64 divisors (see below), whose sum is σ = 2050671168000. Its totient is φ = 508910912640.

The previous prime is 1186163478433. The next prime is 1186163478529. The reversal of 1186163478478 is 8748743616811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238806351 + ... + 238811317.

It is an arithmetic number, because the mean of its divisors is an integer number (32041737000).

Almost surely, 2^{1186163478478} is an apocalyptic number.

1186163478478 is a deficient number, since it is larger than the sum of its proper divisors (864507689522).

1186163478478 is a wasteful number, since it uses less digits than its factorization.

1186163478478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985.

The product of its digits is 43352064, while the sum is 64.

The spelling of 1186163478478 in words is "one trillion, one hundred eighty-six billion, one hundred sixty-three million, four hundred seventy-eight thousand, four hundred seventy-eight".