68451696 has 80 divisors (see below), whose sum is σ = 197740320. Its totient is φ = 22671360.

The previous prime is 68451659. The next prime is 68451697. The reversal of 68451696 is 69615486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68451697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82966 + ... + 83786.

It is an arithmetic number, because the mean of its divisors is an integer number (2471754).

Almost surely, 2^68451696 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 68451696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98870160).

68451696 is an abundant number, since it is smaller than the sum of its proper divisors (129288624).

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

68451696 is a wasteful number, since it uses less digits than its factorization.

68451696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1019 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 68451696 is about 8273.5540126357. The cubic root of 68451696 is about 409.0672749175.

The spelling of 68451696 in words is "sixty-eight million, four hundred fifty-one thousand, six hundred ninety-six".