78550088112858 has 16 divisors (see below), whose sum is σ = 157260974780160. Its totient is φ = 26156562945216.

The previous prime is 78550088112833. The next prime is 78550088112863. The reversal of 78550088112858 is 85821188005587.

It is a Curzon 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, 6699933418 + ... + 6699945141.

It is an arithmetic number, because the mean of its divisors is an integer number (9828810923760).

Almost surely, 2^{78550088112858} is an apocalyptic number.

78550088112858 is an abundant number, since it is smaller than the sum of its proper divisors (78710886667302).

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

78550088112858 is a wasteful number, since it uses less digits than its factorization.

78550088112858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13399879541.

The product of its (nonzero) digits is 57344000, while the sum is 66.

The spelling of 78550088112858 in words is "seventy-eight trillion, five hundred fifty billion, eighty-eight million, one hundred twelve thousand, eight hundred fifty-eight".