68865669 has 24 divisors (see below), whose sum is σ = 103064832. Its totient is φ = 44281440.

The previous prime is 68865647. The next prime is 68865673. The reversal of 68865669 is 96656886.

It is not a de Polignac number, because 68865669 - 2⁷ = 68865541 is a prime.

It is a super-2 number, since 2×68865669² = 9484960733635122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68865689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28887 + ... + 31179.

It is an arithmetic number, because the mean of its divisors is an integer number (4294368).

Almost surely, 2^68865669 is an apocalyptic number.

It is an amenable number.

68865669 is a deficient number, since it is larger than the sum of its proper divisors (34199163).

68865669 is a wasteful number, since it uses less digits than its factorization.

68865669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417 (or 2414 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 68865669 is about 8298.5341476673. The cubic root of 68865669 is about 409.8902522040.

The spelling of 68865669 in words is "sixty-eight million, eight hundred sixty-five thousand, six hundred sixty-nine".