67630783872 has 256 divisors, whose sum is σ = 191731276800. Its totient is φ = 21077557248.

The previous prime is 67630783837. The next prime is 67630783901. The reversal of 67630783872 is 27838703676.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76246213 + ... + 76247099.

It is an arithmetic number, because the mean of its divisors is an integer number (748950300).

Almost surely, 2^67630783872 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 67630783872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95865638400).

67630783872 is an abundant number, since it is smaller than the sum of its proper divisors (124100492928).

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

67630783872 is a wasteful number, since it uses less digits than its factorization.

67630783872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 67630783872 in words is "sixty-seven billion, six hundred thirty million, seven hundred eighty-three thousand, eight hundred seventy-two".