78446148316 has 12 divisors (see below), whose sum is σ = 138189904720. Its totient is φ = 38963318400.

The previous prime is 78446148299. The next prime is 78446148367. The reversal of 78446148316 is 61384164487.

It is a congruent number.

It is an unprimeable number.

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, 64938261 + ... + 64939468.

Almost surely, 2^78446148316 is an apocalyptic number.

It is an amenable number.

78446148316 is a deficient number, since it is larger than the sum of its proper divisors (59743756404).

78446148316 is a wasteful number, since it uses less digits than its factorization.

78446148316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129877884 (or 129877882 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

The spelling of 78446148316 in words is "seventy-eight billion, four hundred forty-six million, one hundred forty-eight thousand, three hundred sixteen".