78077493230859 has 24 divisors (see below), whose sum is σ = 117693533468160. Its totient is φ = 49783674810672.

The previous prime is 78077493230851. The next prime is 78077493230873. The reversal of 78077493230859 is 95803239477087.

78077493230859 is a `hidden beast` number, since 7 + 80 + 7 + 7 + 493 + 2 + 3 + 0 + 8 + 59 = 666.

It is not a de Polignac number, because 78077493230859 - 2³ = 78077493230851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78077493230851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16331749 + ... + 20564070.

It is an arithmetic number, because the mean of its divisors is an integer number (4903897227840).

Almost surely, 2^{78077493230859} is an apocalyptic number.

78077493230859 is a deficient number, since it is larger than the sum of its proper divisors (39616040237301).

78077493230859 is a wasteful number, since it uses less digits than its factorization.

78077493230859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36906071 (or 36906068 counting only the distinct ones).

The product of its (nonzero) digits is 640120320, while the sum is 72.

The spelling of 78077493230859 in words is "seventy-eight trillion, seventy-seven billion, four hundred ninety-three million, two hundred thirty thousand, eight hundred fifty-nine".