68970978672 has 80 divisors (see below), whose sum is σ = 183305330208. Its totient is φ = 22333173760.

The previous prime is 68970978667. The next prime is 68970978683. The reversal of 68970978672 is 27687907986.

It is a junction number, because it is equal to n+sod(n) for n = 68970978597 and 68970978606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383338 + ... + 533750.

Almost surely, 2^68970978672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68970978672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91652665104).

68970978672 is an abundant number, since it is smaller than the sum of its proper divisors (114334351536).

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

68970978672 is a wasteful number, since it uses less digits than its factorization.

68970978672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150698 (or 150692 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 69.

The spelling of 68970978672 in words is "sixty-eight billion, nine hundred seventy million, nine hundred seventy-eight thousand, six hundred seventy-two".