67670963920 has 640 divisors, whose sum is σ = 205701120000. Its totient is φ = 20605777920.

The previous prime is 67670963917. The next prime is 67670963923. The reversal of 67670963920 is 2936907676.

It is an interprime number because it is at equal distance from previous prime (67670963917) and next prime (67670963923).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67670963923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 856594441 + ... + 856594519.

It is an arithmetic number, because the mean of its divisors is an integer number (321408000).

Almost surely, 2^67670963920 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 67670963920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102850560000).

67670963920 is an abundant number, since it is smaller than the sum of its proper divisors (138030156080).

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

67670963920 is a wasteful number, since it uses less digits than its factorization.

67670963920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 55.

The spelling of 67670963920 in words is "sixty-seven billion, six hundred seventy million, nine hundred sixty-three thousand, nine hundred twenty".