78625568 has 48 divisors (see below), whose sum is σ = 179081280. Its totient is φ = 33282816.

The previous prime is 78625567. The next prime is 78625597. The reversal of 78625568 is 86552687.

It is not an unprimeable number, because it can be changed into a prime (78625567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16478 + ... + 20706.

It is an arithmetic number, because the mean of its divisors is an integer number (3730860).

Almost surely, 2^78625568 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 78625568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89540640).

78625568 is an abundant number, since it is smaller than the sum of its proper divisors (100455712).

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

78625568 is a wasteful number, since it uses less digits than its factorization.

78625568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329 (or 4321 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 78625568 is about 8867.1059540303. The cubic root of 78625568 is about 428.4050667744.

The spelling of 78625568 in words is "seventy-eight million, six hundred twenty-five thousand, five hundred sixty-eight".