78498847884 has 12 divisors (see below), whose sum is σ = 183163978424. Its totient is φ = 26166282624.

The previous prime is 78498847883. The next prime is 78498847897. The reversal of 78498847884 is 48874889487.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (78498847883) 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, 3270785317 + ... + 3270785340.

Almost surely, 2^78498847884 is an apocalyptic number.

It is an amenable number.

78498847884 is an abundant number, since it is smaller than the sum of its proper divisors (104665130540).

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

78498847884 is a wasteful number, since it uses less digits than its factorization.

78498847884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541570664 (or 6541570662 counting only the distinct ones).

The product of its digits is 924844032, while the sum is 75.

The spelling of 78498847884 in words is "seventy-eight billion, four hundred ninety-eight million, eight hundred forty-seven thousand, eight hundred eighty-four".