68919552 has 216 divisors, whose sum is σ = 224431200. Its totient is φ = 20846592.

The previous prime is 68919527. The next prime is 68919559. The reversal of 68919552 is 25591986.

68919552 is a `hidden beast` number, since 6 + 8 + 91 + 9 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a junction number, because it is equal to n+sod(n) for n = 68919498 and 68919507.

It is not an unprimeable number, because it can be changed into a prime (68919559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1168099 + ... + 1168157.

Almost surely, 2^68919552 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 68919552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112215600).

68919552 is an abundant number, since it is smaller than the sum of its proper divisors (155511648).

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

68919552 is a wasteful number, since it uses less digits than its factorization.

68919552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 77 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 68919552 is about 8301.7800500856. The cubic root of 68919552 is about 409.9971286731.

The spelling of 68919552 in words is "sixty-eight million, nine hundred nineteen thousand, five hundred fifty-two".