1171997975882 has 8 divisors (see below), whose sum is σ = 1834431614496. Its totient is φ = 560520771052.

The previous prime is 1171997975861. The next prime is 1171997975899. The reversal of 1171997975882 is 2885797991711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12739108388 + ... + 12739108479.

It is an arithmetic number, because the mean of its divisors is an integer number (229303951812).

Almost surely, 2^{1171997975882} is an apocalyptic number.

1171997975882 is a deficient number, since it is larger than the sum of its proper divisors (662433638614).

1171997975882 is a wasteful number, since it uses less digits than its factorization.

1171997975882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25478216892.

The product of its digits is 160030080, while the sum is 74.

The spelling of 1171997975882 in words is "one trillion, one hundred seventy-one billion, nine hundred ninety-seven million, nine hundred seventy-five thousand, eight hundred eighty-two".