68886617597 has 4 divisors (see below), whose sum is σ = 78727562976. Its totient is φ = 59045672220.

The previous prime is 68886617573. The next prime is 68886617623. The reversal of 68886617597 is 79571668886.

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 68886617597 - 2⁶ = 68886617533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68886617597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68886617537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4920472679 + ... + 4920472692.

It is an arithmetic number, because the mean of its divisors is an integer number (19681890744).

Almost surely, 2^68886617597 is an apocalyptic number.

It is an amenable number.

68886617597 is a deficient number, since it is larger than the sum of its proper divisors (9840945379).

68886617597 is an equidigital number, since it uses as much as digits as its factorization.

68886617597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840945378.

The product of its digits is 243855360, while the sum is 71.

The spelling of 68886617597 in words is "sixty-eight billion, eight hundred eighty-six million, six hundred seventeen thousand, five hundred ninety-seven".