1178664713 has 4 divisors (see below), whose sum is σ = 1178734080. Its totient is φ = 1178595348.

The previous prime is 1178664691. The next prime is 1178664727. The reversal of 1178664713 is 3174668711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3174668711 = 10391 ⋅305521.

It is a cyclic number.

It is not a de Polignac number, because 1178664713 - 2¹⁴ = 1178648329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1178664763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9956 + ... + 49562.

It is an arithmetic number, because the mean of its divisors is an integer number (294683520).

Almost surely, 2^1178664713 is an apocalyptic number.

It is an amenable number.

1178664713 is a deficient number, since it is larger than the sum of its proper divisors (69367).

1178664713 is an equidigital number, since it uses as much as digits as its factorization.

1178664713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69366.

The product of its digits is 169344, while the sum is 44.

The square root of 1178664713 is about 34331.6867194142. The cubic root of 1178664713 is about 1056.3230596477.

The spelling of 1178664713 in words is "one billion, one hundred seventy-eight million, six hundred sixty-four thousand, seven hundred thirteen".