78830063928 has 384 divisors, whose sum is σ = 290939351040. Its totient is φ = 18648576000.

The previous prime is 78830063891. The next prime is 78830063929. The reversal of 78830063928 is 82936003887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78830063929) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2908198 + ... + 2935178.

It is an arithmetic number, because the mean of its divisors is an integer number (757654560).

Almost surely, 2^78830063928 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 78830063928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145469675520).

78830063928 is an abundant number, since it is smaller than the sum of its proper divisors (212109287112).

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

78830063928 is a wasteful number, since it uses less digits than its factorization.

78830063928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27059 (or 27052 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 78830063928 in words is "seventy-eight billion, eight hundred thirty million, sixty-three thousand, nine hundred twenty-eight".