78021306104 has 16 divisors (see below), whose sum is σ = 167188513200. Its totient is φ = 33437702592.

The previous prime is 78021306101. The next prime is 78021306109. The reversal of 78021306104 is 40160312087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78021306101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696618749 + ... + 696618860.

It is an arithmetic number, because the mean of its divisors is an integer number (10449282075).

Almost surely, 2^78021306104 is an apocalyptic number.

It is an amenable number.

78021306104 is an abundant number, since it is smaller than the sum of its proper divisors (89167207096).

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

78021306104 is a wasteful number, since it uses less digits than its factorization.

78021306104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393237622 (or 1393237618 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 78021306104 in words is "seventy-eight billion, twenty-one million, three hundred six thousand, one hundred four".