1171063878 has 8 divisors (see below), whose sum is σ = 2342127768. Its totient is φ = 390354624.

The previous prime is 1171063867. The next prime is 1171063903. The reversal of 1171063878 is 8783601711.

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

1171063878 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 97588651 + ... + 97588662.

It is an arithmetic number, because the mean of its divisors is an integer number (292765971).

Almost surely, 2^1171063878 is an apocalyptic number.

1171063878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1171063878 is a wasteful number, since it uses less digits than its factorization.

1171063878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195177318.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 1171063878 is about 34220.8105982310. The cubic root of 1171063878 is about 1054.0475304033.

The spelling of 1171063878 in words is "one billion, one hundred seventy-one million, sixty-three thousand, eight hundred seventy-eight".