68869136 has 40 divisors (see below), whose sum is σ = 156626880. Its totient is φ = 28715904.

The previous prime is 68869123. The next prime is 68869139. The reversal of 68869136 is 63196886.

It is not an unprimeable number, because it can be changed into a prime (68869139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4166 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (3915672).

Almost surely, 2^68869136 is an apocalyptic number.

It is an amenable number.

68869136 is an abundant number, since it is smaller than the sum of its proper divisors (87757744).

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

68869136 is a wasteful number, since it uses less digits than its factorization.

68869136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16671 (or 16665 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 68869136 is about 8298.7430373521. The cubic root of 68869136 is about 409.8971306466.

The spelling of 68869136 in words is "sixty-eight million, eight hundred sixty-nine thousand, one hundred thirty-six".