67738473792 has 336 divisors, whose sum is σ = 218821162560. Its totient is φ = 19856793600.

The previous prime is 67738473791. The next prime is 67738473797. The reversal of 67738473792 is 29737483776.

67738473792 is a `hidden beast` number, since 6 + 7 + 73 + 8 + 473 + 7 + 92 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67738473791) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29695692 + ... + 29697972.

It is an arithmetic number, because the mean of its divisors is an integer number (651253460).

Almost surely, 2^67738473792 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 67738473792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109410581280).

67738473792 is an abundant number, since it is smaller than the sum of its proper divisors (151082688768).

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

67738473792 is a wasteful number, since it uses less digits than its factorization.

67738473792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2449 counting only the distinct ones).

The product of its digits is 74680704, while the sum is 63.

The spelling of 67738473792 in words is "sixty-seven billion, seven hundred thirty-eight million, four hundred seventy-three thousand, seven hundred ninety-two".