1170776878 has 4 divisors (see below), whose sum is σ = 1756165320. Its totient is φ = 585388438.

The previous prime is 1170776869. The next prime is 1170776881. The reversal of 1170776878 is 8786770711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8786770711 = 4643 ⋅1892477.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 292694218 + ... + 292694221.

It is an arithmetic number, because the mean of its divisors is an integer number (439041330).

Almost surely, 2^1170776878 is an apocalyptic number.

1170776878 is a deficient number, since it is larger than the sum of its proper divisors (585388442).

1170776878 is an equidigital number, since it uses as much as digits as its factorization.

1170776878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585388441.

The product of its (nonzero) digits is 921984, while the sum is 52.

The square root of 1170776878 is about 34216.6169864877. The cubic root of 1170776878 is about 1053.9614160125.

The spelling of 1170776878 in words is "one billion, one hundred seventy million, seven hundred seventy-six thousand, eight hundred seventy-eight".