1173871992685 has 16 divisors (see below), whose sum is σ = 1614494448000. Its totient is φ = 802634366016.

The previous prime is 1173871992673. The next prime is 1173871992719. The reversal of 1173871992685 is 5862991783711.

It is not a de Polignac number, because 1173871992685 - 2⁹ = 1173871992173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1173871992685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48038215 + ... + 48062644.

It is an arithmetic number, because the mean of its divisors is an integer number (100905903000).

Almost surely, 2^{1173871992685} is an apocalyptic number.

It is an amenable number.

1173871992685 is a deficient number, since it is larger than the sum of its proper divisors (440622455315).

1173871992685 is an equidigital number, since it uses as much as digits as its factorization.

1173871992685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96101220.

The product of its digits is 45722880, while the sum is 67.

The spelling of 1173871992685 in words is "one trillion, one hundred seventy-three billion, eight hundred seventy-one million, nine hundred ninety-two thousand, six hundred eighty-five".