68845641 has 12 divisors (see below), whose sum is σ = 94347792. Its totient is φ = 44653968.

The previous prime is 68845633. The next prime is 68845661. The reversal of 68845641 is 14654886.

It is not a de Polignac number, because 68845641 - 2³ = 68845633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68845593 and 68845602.

It is not an unprimeable number, because it can be changed into a prime (68845661) 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, 4275 + ... + 12488.

It is an arithmetic number, because the mean of its divisors is an integer number (7862316).

Almost surely, 2^68845641 is an apocalyptic number.

It is an amenable number.

68845641 is a deficient number, since it is larger than the sum of its proper divisors (25502151).

68845641 is a wasteful number, since it uses less digits than its factorization.

68845641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16840 (or 16803 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 68845641 is about 8297.3273407767. The cubic root of 68845641 is about 409.8505126258.

The spelling of 68845641 in words is "sixty-eight million, eight hundred forty-five thousand, six hundred forty-one".