68646912 has 48 divisors (see below), whose sum is σ = 183030120. Its totient is φ = 22880256.

The previous prime is 68646887. The next prime is 68646923. The reversal of 68646912 is 21964686.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 11730.

Almost surely, 2^68646912 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 68646912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91515060).

68646912 is an abundant number, since it is smaller than the sum of its proper divisors (114383208).

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

68646912 is a wasteful number, since it uses less digits than its factorization.

68646912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198 (or 11178 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 68646912 is about 8285.3432035131. The cubic root of 68646912 is about 409.4557760463.

The spelling of 68646912 in words is "sixty-eight million, six hundred forty-six thousand, nine hundred twelve".