67071893472 has 72 divisors (see below), whose sum is σ = 194334528024. Its totient is φ = 21935457024.

The previous prime is 67071893459. The next prime is 67071893507. The reversal of 67071893472 is 27439817076.

67071893472 is a `hidden beast` number, since 6 + 70 + 7 + 18 + 93 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2181798 + ... + 2212325.

It is an arithmetic number, because the mean of its divisors is an integer number (2699090667).

Almost surely, 2^67071893472 is an apocalyptic number.

It is an amenable number.

67071893472 is an abundant number, since it is smaller than the sum of its proper divisors (127262634552).

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

67071893472 is a wasteful number, since it uses less digits than its factorization.

67071893472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394192 (or 4394181 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 67071893472 in words is "sixty-seven billion, seventy-one million, eight hundred ninety-three thousand, four hundred seventy-two".