64917068969 has 8 divisors (see below), whose sum is σ = 67037233920. Its totient is φ = 62798533200.

The previous prime is 64917068939. The next prime is 64917068977. The reversal of 64917068969 is 96986071946.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64917068969 is a prime.

It is a super-3 number, since 3×64917068969³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64917068939) 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, 326042 + ... + 485939.

It is an arithmetic number, because the mean of its divisors is an integer number (8379654240).

Almost surely, 2^64917068969 is an apocalyptic number.

It is an amenable number.

64917068969 is a deficient number, since it is larger than the sum of its proper divisors (2120164951).

64917068969 is a wasteful number, since it uses less digits than its factorization.

64917068969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814591.

The product of its (nonzero) digits is 35271936, while the sum is 65.

The spelling of 64917068969 in words is "sixty-four billion, nine hundred seventeen million, sixty-eight thousand, nine hundred sixty-nine".