78188245084 has 24 divisors (see below), whose sum is σ = 137132724960. Its totient is φ = 39007531776.

The previous prime is 78188245063. The next prime is 78188245097. The reversal of 78188245084 is 48054288187.

It is a happy number.

It is a super-3 number, since 3×78188245084³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent 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, 5949729 + ... + 5962855.

It is an arithmetic number, because the mean of its divisors is an integer number (5713863540).

Almost surely, 2^78188245084 is an apocalyptic number.

It is an amenable number.

78188245084 is a deficient number, since it is larger than the sum of its proper divisors (58944479876).

78188245084 is a wasteful number, since it uses less digits than its factorization.

78188245084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16317 (or 16315 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 55.

The spelling of 78188245084 in words is "seventy-eight billion, one hundred eighty-eight million, two hundred forty-five thousand, eighty-four".