68680650 has 24 divisors (see below), whose sum is σ = 170328384. Its totient is φ = 18314800.

The previous prime is 68680637. The next prime is 68680657. The reversal of 68680650 is 5608686.

It is a junction number, because it is equal to n+sod(n) for n = 68680599 and 68680608.

It is not an unprimeable number, because it can be changed into a prime (68680657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228786 + ... + 229085.

It is an arithmetic number, because the mean of its divisors is an integer number (7097016).

Almost surely, 2^68680650 is an apocalyptic number.

68680650 is an abundant number, since it is smaller than the sum of its proper divisors (101647734).

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

68680650 is a wasteful number, since it uses less digits than its factorization.

68680650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457886 (or 457881 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 68680650 is about 8287.3789583921. The cubic root of 68680650 is about 409.5228436734.

The spelling of 68680650 in words is "sixty-eight million, six hundred eighty thousand, six hundred fifty".