78791081448 has 32 divisors (see below), whose sum is σ = 196994547360. Its totient is φ = 26261448000.

The previous prime is 78791081431. The next prime is 78791081477. The reversal of 78791081448 is 84418019787.

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 7 ways as a sum of consecutive naturals, for example, 159198 + ... + 427698.

It is an arithmetic number, because the mean of its divisors is an integer number (6156079605).

Almost surely, 2^78791081448 is an apocalyptic number.

It is an amenable number.

78791081448 is an abundant number, since it is smaller than the sum of its proper divisors (118203465912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78791081448 is a wasteful number, since it uses less digits than its factorization.

78791081448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280737 (or 280733 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 57.

The spelling of 78791081448 in words is "seventy-eight billion, seven hundred ninety-one million, eighty-one thousand, four hundred forty-eight".