78858068686827 has 48 divisors (see below), whose sum is σ = 111323440884096. Its totient is φ = 49622665910400.

The previous prime is 78858068686819. The next prime is 78858068686841. The reversal of 78858068686827 is 72868686085887.

It is not a de Polignac number, because 78858068686827 - 2³ = 78858068686819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78858068686807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475920648 + ... + 476086314.

It is an arithmetic number, because the mean of its divisors is an integer number (2319238351752).

Almost surely, 2^{78858068686827} is an apocalyptic number.

78858068686827 is a deficient number, since it is larger than the sum of its proper divisors (32465372197269).

78858068686827 is a wasteful number, since it uses less digits than its factorization.

78858068686827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169800 (or 169769 counting only the distinct ones).

The product of its (nonzero) digits is 27745320960, while the sum is 87.

The spelling of 78858068686827 in words is "seventy-eight trillion, eight hundred fifty-eight billion, sixty-eight million, six hundred eighty-six thousand, eight hundred twenty-seven".