1171868379 has 32 divisors (see below), whose sum is σ = 1749580800. Its totient is φ = 691558560.

The previous prime is 1171868363. The next prime is 1171868381. The reversal of 1171868379 is 9738681711.

It is not a de Polignac number, because 1171868379 - 2⁴ = 1171868363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1171868309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536712 + ... + 538890.

It is an arithmetic number, because the mean of its divisors is an integer number (54674400).

Almost surely, 2^1171868379 is an apocalyptic number.

1171868379 is a deficient number, since it is larger than the sum of its proper divisors (577712421).

1171868379 is a wasteful number, since it uses less digits than its factorization.

1171868379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615.

The product of its digits is 508032, while the sum is 51.

The square root of 1171868379 is about 34232.5631380415. The cubic root of 1171868379 is about 1054.2888460705.

The spelling of 1171868379 in words is "one billion, one hundred seventy-one million, eight hundred sixty-eight thousand, three hundred seventy-nine".