68844545 has 16 divisors (see below), whose sum is σ = 102999168. Its totient is φ = 42915840.

The previous prime is 68844533. The next prime is 68844547. The reversal of 68844545 is 54544886.

It is a happy number.

It is not a de Polignac number, because 68844545 - 2⁶ = 68844481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68844496 and 68844505.

It is not an unprimeable number, because it can be changed into a prime (68844547) 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, 89024 + ... + 89793.

It is an arithmetic number, because the mean of its divisors is an integer number (6437448).

Almost surely, 2^68844545 is an apocalyptic number.

It is an amenable number.

68844545 is a deficient number, since it is larger than the sum of its proper divisors (34154623).

68844545 is a wasteful number, since it uses less digits than its factorization.

68844545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178840.

The product of its digits is 614400, while the sum is 44.

The square root of 68844545 is about 8297.2612951503. The cubic root of 68844545 is about 409.8483377190.

The spelling of 68844545 in words is "sixty-eight million, eight hundred forty-four thousand, five hundred forty-five".