1178455679 has 2 divisors, whose sum is σ = 1178455680. Its totient is φ = 1178455678.

The previous prime is 1178455673. The next prime is 1178455699. The reversal of 1178455679 is 9765548711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1178455679 - 2¹² = 1178451583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1178455679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1178455673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589227839 + 589227840.

It is an arithmetic number, because the mean of its divisors is an integer number (589227840).

Almost surely, 2^1178455679 is an apocalyptic number.

1178455679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1178455679 is an equidigital number, since it uses as much as digits as its factorization.

1178455679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 53.

The square root of 1178455679 is about 34328.6422539546. The cubic root of 1178455679 is about 1056.2606103109.

The spelling of 1178455679 in words is "one billion, one hundred seventy-eight million, four hundred fifty-five thousand, six hundred seventy-nine".