68411945 has 8 divisors (see below), whose sum is σ = 93822144. Its totient is φ = 46911024.

The previous prime is 68411933. The next prime is 68411953. The reversal of 68411945 is 54911486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68411945 - 2⁴ = 68411929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68411899 and 68411908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977279 + ... + 977348.

It is an arithmetic number, because the mean of its divisors is an integer number (11727768).

Almost surely, 2^68411945 is an apocalyptic number.

It is an amenable number.

68411945 is a deficient number, since it is larger than the sum of its proper divisors (25410199).

68411945 is a wasteful number, since it uses less digits than its factorization.

68411945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954639.

The product of its digits is 34560, while the sum is 38.

The square root of 68411945 is about 8271.1513708794. The cubic root of 68411945 is about 408.9880756044.

The spelling of 68411945 in words is "sixty-eight million, four hundred eleven thousand, nine hundred forty-five".