78145806088678 has 32 divisors (see below), whose sum is σ = 129043454572800. Its totient is φ = 35327098531296.

The previous prime is 78145806088667. The next prime is 78145806088687. The reversal of 78145806088678 is 87688060854187.

It is a super-2 number, since 2×78145806088678² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100528933 + ... + 101303296.

It is an arithmetic number, because the mean of its divisors is an integer number (4032607955400).

Almost surely, 2^{78145806088678} is an apocalyptic number.

78145806088678 is a deficient number, since it is larger than the sum of its proper divisors (50897648484122).

78145806088678 is a wasteful number, since it uses less digits than its factorization.

78145806088678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201832716.

The product of its (nonzero) digits is 1156055040, while the sum is 76.

The spelling of 78145806088678 in words is "seventy-eight trillion, one hundred forty-five billion, eight hundred six million, eighty-eight thousand, six hundred seventy-eight".