1178793643 has 2 divisors, whose sum is σ = 1178793644. Its totient is φ = 1178793642.

The previous prime is 1178793607. The next prime is 1178793659. The reversal of 1178793643 is 3463978711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1178793643 - 2¹⁷ = 1178662571 is a prime.

It is a super-2 number, since 2×1178793643² = 2779108905554422898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1178793743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589396821 + 589396822.

It is an arithmetic number, because the mean of its divisors is an integer number (589396822).

Almost surely, 2^1178793643 is an apocalyptic number.

1178793643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178793643 is an equidigital number, since it uses as much as digits as its factorization.

1178793643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 49.

The square root of 1178793643 is about 34333.5643794815. The cubic root of 1178793643 is about 1056.3615740686.

The spelling of 1178793643 in words is "one billion, one hundred seventy-eight million, seven hundred ninety-three thousand, six hundred forty-three".