78855124834 has 8 divisors (see below), whose sum is σ = 118289450448. Its totient is φ = 39425308020.

The previous prime is 78855124771. The next prime is 78855124837. The reversal of 78855124834 is 43842155887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (78855124837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083132 + ... + 1153639.

It is an arithmetic number, because the mean of its divisors is an integer number (14786181306).

Almost surely, 2^78855124834 is an apocalyptic number.

78855124834 is a deficient number, since it is larger than the sum of its proper divisors (39434325614).

78855124834 is a wasteful number, since it uses less digits than its factorization.

78855124834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254400.

The product of its digits is 8601600, while the sum is 55.

The spelling of 78855124834 in words is "seventy-eight billion, eight hundred fifty-five million, one hundred twenty-four thousand, eight hundred thirty-four".