78508141844 has 12 divisors (see below), whose sum is σ = 149879179968. Its totient is φ = 35685519000.

The previous prime is 78508141769. The next prime is 78508141849. The reversal of 78508141844 is 44814180587.

It is a junction number, because it is equal to n+sod(n) for n = 78508141792 and 78508141801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78508141849) 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, 892137932 + ... + 892138019.

It is an arithmetic number, because the mean of its divisors is an integer number (12489931664).

Almost surely, 2^78508141844 is an apocalyptic number.

It is an amenable number.

78508141844 is a deficient number, since it is larger than the sum of its proper divisors (71371038124).

78508141844 is a wasteful number, since it uses less digits than its factorization.

78508141844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784275966 (or 1784275964 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 50.

The spelling of 78508141844 in words is "seventy-eight billion, five hundred eight million, one hundred forty-one thousand, eight hundred forty-four".