78887243218134 has 32 divisors (see below), whose sum is σ = 169915519156320. Its totient is φ = 24272350232832.

The previous prime is 78887243218127. The next prime is 78887243218151. The reversal of 78887243218134 is 43181234278887.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10547317 + ... + 16401840.

It is an arithmetic number, because the mean of its divisors is an integer number (5309859973635).

Almost surely, 2^{78887243218134} is an apocalyptic number.

78887243218134 is an abundant number, since it is smaller than the sum of its proper divisors (91028275938186).

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

78887243218134 is a wasteful number, since it uses less digits than its factorization.

78887243218134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26986704.

The product of its digits is 115605504, while the sum is 66.

The spelling of 78887243218134 in words is "seventy-eight trillion, eight hundred eighty-seven billion, two hundred forty-three million, two hundred eighteen thousand, one hundred thirty-four".