78597902880 has 576 divisors, whose sum is σ = 320974617600. Its totient is φ = 17790741504.

The previous prime is 78597902869. The next prime is 78597902881. The reversal of 78597902880 is 8820979587.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (78597902881) 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, 29119771 + ... + 29122469.

It is an arithmetic number, because the mean of its divisors is an integer number (557247600).

Almost surely, 2^78597902880 is an apocalyptic number.

78597902880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78597902880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160487308800).

78597902880 is an abundant number, since it is smaller than the sum of its proper divisors (242376714720).

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

78597902880 is a wasteful number, since it uses less digits than its factorization.

78597902880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2823 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 78597902880 in words is "seventy-eight billion, five hundred ninety-seven million, nine hundred two thousand, eight hundred eighty".