69385568 has 144 divisors (see below), whose sum is σ = 178400880. Its totient is φ = 26320896.

The previous prime is 69385553. The next prime is 69385573. The reversal of 69385568 is 86558396.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506396 + ... + 506532.

It is an arithmetic number, because the mean of its divisors is an integer number (1238895).

Almost surely, 2^69385568 is an apocalyptic number.

69385568 is a gapful number since it is divisible by the number (68) 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 69385568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89200440).

69385568 is an abundant number, since it is smaller than the sum of its proper divisors (109015312).

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

69385568 is a wasteful number, since it uses less digits than its factorization.

69385568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 182 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 50.

The square root of 69385568 is about 8329.7999975990. The cubic root of 69385568 is about 410.9191514397.

The spelling of 69385568 in words is "sixty-nine million, three hundred eighty-five thousand, five hundred sixty-eight".