78504384686016 has 56 divisors (see below), whose sum is σ = 207724925387520. Its totient is φ = 26166187117312.

The previous prime is 78504384685999. The next prime is 78504384686069. The reversal of 78504384686016 is 61068648340587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12568686 + ... + 17747693.

Almost surely, 2^{78504384686016} is an apocalyptic number.

It is an amenable number.

78504384686016 is an abundant number, since it is smaller than the sum of its proper divisors (129220540701504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78504384686016 is a wasteful number, since it uses less digits than its factorization.

78504384686016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30329881 (or 30329871 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 66.

The spelling of 78504384686016 in words is "seventy-eight trillion, five hundred four billion, three hundred eighty-four million, six hundred eighty-six thousand, sixteen".