78630942528 has 84 divisors (see below), whose sum is σ = 225579115008. Its totient is φ = 26187321600.

The previous prime is 78630942491. The next prime is 78630942529. The reversal of 78630942528 is 82524903687.

78630942528 is a `hidden beast` number, since 7 + 86 + 30 + 9 + 4 + 2 + 528 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78630942529) 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 11 ways as a sum of consecutive naturals, for example, 603675 + ... + 722277.

Almost surely, 2^78630942528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78630942528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112789557504).

78630942528 is an abundant number, since it is smaller than the sum of its proper divisors (146948172480).

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

78630942528 is a wasteful number, since it uses less digits than its factorization.

78630942528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119772 (or 119759 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 78630942528 in words is "seventy-eight billion, six hundred thirty million, nine hundred forty-two thousand, five hundred twenty-eight".