67284360640 has 224 divisors, whose sum is σ = 185434614144. Its totient is φ = 22778019840.

The previous prime is 67284360613. The next prime is 67284360659. The reversal of 67284360640 is 4606348276.

It is a tau number, because it is divible by the number of its divisors (224).

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, 71502570 + ... + 71503510.

Almost surely, 2^67284360640 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 67284360640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92717307072).

67284360640 is an abundant number, since it is smaller than the sum of its proper divisors (118150253504).

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

67284360640 is a wasteful number, since it uses less digits than its factorization.

67284360640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 67284360640 in words is "sixty-seven billion, two hundred eighty-four million, three hundred sixty thousand, six hundred forty".