68641465 has 8 divisors (see below), whose sum is σ = 82761408. Its totient is φ = 54652080.

The previous prime is 68641387. The next prime is 68641477. The reversal of 68641465 is 56414686.

It is a happy number.

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

It is not a de Polignac number, because 68641465 - 2⁷ = 68641337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31477 + ... + 33586.

It is an arithmetic number, because the mean of its divisors is an integer number (10345176).

Almost surely, 2^68641465 is an apocalyptic number.

It is an amenable number.

68641465 is a deficient number, since it is larger than the sum of its proper divisors (14119943).

68641465 is a wasteful number, since it uses less digits than its factorization.

68641465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65279.

The product of its digits is 138240, while the sum is 40.

The square root of 68641465 is about 8285.0144839946. The cubic root of 68641465 is about 409.4449459179. Note that the first 3 decimals are identical.

The spelling of 68641465 in words is "sixty-eight million, six hundred forty-one thousand, four hundred sixty-five".