68359989468 has 12 divisors (see below), whose sum is σ = 159506642120. Its totient is φ = 22786663152.

The previous prime is 68359989449. The next prime is 68359989487. The reversal of 68359989468 is 86498995386.

It is an interprime number because it is at equal distance from previous prime (68359989449) and next prime (68359989487).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 68359989468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2848332883 + ... + 2848332906.

Almost surely, 2^68359989468 is an apocalyptic number.

It is an amenable number.

68359989468 is an abundant number, since it is smaller than the sum of its proper divisors (91146652652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68359989468 is a wasteful number, since it uses less digits than its factorization.

68359989468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696665796 (or 5696665794 counting only the distinct ones).

The product of its digits is 806215680, while the sum is 75.

The spelling of 68359989468 in words is "sixty-eight billion, three hundred fifty-nine million, nine hundred eighty-nine thousand, four hundred sixty-eight".