78675568001617 has 8 divisors (see below), whose sum is σ = 78875816406336. Its totient is φ = 78475330015632.

The previous prime is 78675568001579. The next prime is 78675568001621. The reversal of 78675568001617 is 71610086557687.

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-78675568001617 is a prime.

It is a super-2 number, since 2×78675568001617² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78675560001617) 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, 12630498 + ... + 17801140.

It is an arithmetic number, because the mean of its divisors is an integer number (9859477050792).

Almost surely, 2^{78675568001617} is an apocalyptic number.

It is an amenable number.

78675568001617 is a deficient number, since it is larger than the sum of its proper divisors (200248404719).

78675568001617 is a wasteful number, since it uses less digits than its factorization.

78675568001617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209367.

The product of its (nonzero) digits is 118540800, while the sum is 67.

The spelling of 78675568001617 in words is "seventy-eight trillion, six hundred seventy-five billion, five hundred sixty-eight million, one thousand, six hundred seventeen".