67294972368 has 200 divisors, whose sum is σ = 213311868000. Its totient is φ = 20354893056.

The previous prime is 67294972363. The next prime is 67294972397. The reversal of 67294972368 is 86327949276.

67294972368 is a `hidden beast` number, since 67 + 2 + 9 + 497 + 23 + 68 = 666.

It is a super-2 number, since 2×67294972368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67294972363) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 960183 + ... + 1027881.

It is an arithmetic number, because the mean of its divisors is an integer number (1066559340).

Almost surely, 2^67294972368 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 67294972368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106655934000).

67294972368 is an abundant number, since it is smaller than the sum of its proper divisors (146016895632).

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

67294972368 is a wasteful number, since it uses less digits than its factorization.

67294972368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67791 (or 67776 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 67294972368 in words is "sixty-seven billion, two hundred ninety-four million, nine hundred seventy-two thousand, three hundred sixty-eight".