68465569 has 4 divisors (see below), whose sum is σ = 72069040. Its totient is φ = 64862100.

The previous prime is 68465563. The next prime is 68465581. The reversal of 68465569 is 96556486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68465569 - 2³ = 68465561 is a prime.

It is a super-2 number, since 2×68465569² = 9375068276987522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68465561) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1801707 + ... + 1801744.

It is an arithmetic number, because the mean of its divisors is an integer number (18017260).

Almost surely, 2^68465569 is an apocalyptic number.

It is an amenable number.

68465569 is a deficient number, since it is larger than the sum of its proper divisors (3603471).

68465569 is a wasteful number, since it uses less digits than its factorization.

68465569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603470.

The product of its digits is 1555200, while the sum is 49.

The square root of 68465569 is about 8274.3923643975. The cubic root of 68465569 is about 409.0949080627.

The spelling of 68465569 in words is "sixty-eight million, four hundred sixty-five thousand, five hundred sixty-nine".