68686576 has 80 divisors (see below), whose sum is σ = 159735808. Its totient is φ = 27993600.

The previous prime is 68686559. The next prime is 68686627. The reversal of 68686576 is 67568686.

Its product of digits (2903040) is a multiple of the sum of its prime divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253321 + ... + 253591.

Almost surely, 2^68686576 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 68686576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79867904).

68686576 is an abundant number, since it is smaller than the sum of its proper divisors (91049232).

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

68686576 is a wasteful number, since it uses less digits than its factorization.

68686576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 384 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 68686576 is about 8287.7364822972. The cubic root of 68686576 is about 409.5346216758.

The spelling of 68686576 in words is "sixty-eight million, six hundred eighty-six thousand, five hundred seventy-six".