68881650 has 48 divisors (see below), whose sum is σ = 179824800. Its totient is φ = 17400960.

The previous prime is 68881643. The next prime is 68881651. The reversal of 68881650 is 5618886.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68881651) 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, 9235 + ... + 14934.

It is an arithmetic number, because the mean of its divisors is an integer number (3746350).

Almost surely, 2^68881650 is an apocalyptic number.

68881650 is an abundant number, since it is smaller than the sum of its proper divisors (110943150).

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

68881650 is a wasteful number, since it uses less digits than its factorization.

68881650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24203 (or 24198 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 68881650 is about 8299.4969727086. The cubic root of 68881650 is about 409.9219561942.

The spelling of 68881650 in words is "sixty-eight million, eight hundred eighty-one thousand, six hundred fifty".