78830706552 has 128 divisors (see below), whose sum is σ = 222747840000. Its totient is φ = 23066537472.

The previous prime is 78830706551. The next prime is 78830706593. The reversal of 78830706552 is 25560703887.

It is a junction number, because it is equal to n+sod(n) for n = 78830706495 and 78830706504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78830706551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1209699 + ... + 1273197.

It is an arithmetic number, because the mean of its divisors is an integer number (1740217500).

Almost surely, 2^78830706552 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 78830706552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111373920000).

78830706552 is an abundant number, since it is smaller than the sum of its proper divisors (143917133448).

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

78830706552 is a wasteful number, since it uses less digits than its factorization.

78830706552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63717 (or 63713 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 78830706552 in words is "seventy-eight billion, eight hundred thirty million, seven hundred six thousand, five hundred fifty-two".