1177841868 has 96 divisors (see below), whose sum is σ = 3366257664. Its totient is φ = 313175808.

The previous prime is 1177841867. The next prime is 1177841911. The reversal of 1177841868 is 8681487711.

It is a super-2 number, since 2×1177841868² = 2774622932027458848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1177841868.

It is not an unprimeable number, because it can be changed into a prime (1177841867) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 63246 + ... + 79722.

It is an arithmetic number, because the mean of its divisors is an integer number (35065184).

Almost surely, 2^1177841868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1177841868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1683128832).

1177841868 is an abundant number, since it is smaller than the sum of its proper divisors (2188415796).

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

1177841868 is a wasteful number, since it uses less digits than its factorization.

1177841868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16551 (or 16549 counting only the distinct ones).

The product of its digits is 602112, while the sum is 51.

The square root of 1177841868 is about 34319.7008728223. The cubic root of 1177841868 is about 1056.0771903228.

The spelling of 1177841868 in words is "one billion, one hundred seventy-seven million, eight hundred forty-one thousand, eight hundred sixty-eight".