1178344555679 has 8 divisors (see below), whose sum is σ = 1197892218720. Its totient is φ = 1158951420000.

The previous prime is 1178344555657. The next prime is 1178344555681. The reversal of 1178344555679 is 9765554438711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1178344555679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1178344855679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38616464 + ... + 38646965.

It is an arithmetic number, because the mean of its divisors is an integer number (149736527340).

Almost surely, 2^{1178344555679} is an apocalyptic number.

1178344555679 is a deficient number, since it is larger than the sum of its proper divisors (19547663041).

1178344555679 is a wasteful number, since it uses less digits than its factorization.

1178344555679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77263681.

The product of its digits is 127008000, while the sum is 65.

The spelling of 1178344555679 in words is "one trillion, one hundred seventy-eight billion, three hundred forty-four million, five hundred fifty-five thousand, six hundred seventy-nine".