68584915569 has 8 divisors (see below), whose sum is σ = 91448746272. Its totient is φ = 45722180960.

The previous prime is 68584915559. The next prime is 68584915577. The reversal of 68584915569 is 96551948586.

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 68584915569 - 2⁵ = 68584915537 is a prime.

It is a super-2 number, since 2×68584915569² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68584915559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114804 + ... + 387749.

It is an arithmetic number, because the mean of its divisors is an integer number (11431093284).

Almost surely, 2^68584915569 is an apocalyptic number.

It is an amenable number.

68584915569 is a deficient number, since it is larger than the sum of its proper divisors (22863830703).

68584915569 is a wasteful number, since it uses less digits than its factorization.

68584915569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548047.

The product of its digits is 93312000, while the sum is 66.

The spelling of 68584915569 in words is "sixty-eight billion, five hundred eighty-four million, nine hundred fifteen thousand, five hundred sixty-nine".