67651037440 has 144 divisors (see below), whose sum is σ = 185499377280. Its totient is φ = 23156490240.

The previous prime is 67651037437. The next prime is 67651037453. The reversal of 67651037440 is 4473015676.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5737471 + ... + 5749249.

It is an arithmetic number, because the mean of its divisors is an integer number (1288190120).

Almost surely, 2^67651037440 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 67651037440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92749688640).

67651037440 is an abundant number, since it is smaller than the sum of its proper divisors (117848339840).

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

67651037440 is a wasteful number, since it uses less digits than its factorization.

67651037440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12448 (or 12434 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 67651037440 in words is "sixty-seven billion, six hundred fifty-one million, thirty-seven thousand, four hundred forty".