67285461320 has 384 divisors, whose sum is σ = 204808642560. Its totient is φ = 19626647040.

The previous prime is 67285461301. The next prime is 67285461329. The reversal of 67285461320 is 2316458276.

It is a super-2 number, since 2×67285461320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (67285461329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23304917 + ... + 23307803.

It is an arithmetic number, because the mean of its divisors is an integer number (533355840).

Almost surely, 2^67285461320 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 67285461320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102404321280).

67285461320 is an abundant number, since it is smaller than the sum of its proper divisors (137523181240).

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

67285461320 is a wasteful number, since it uses less digits than its factorization.

67285461320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2982 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 67285461320 in words is "sixty-seven billion, two hundred eighty-five million, four hundred sixty-one thousand, three hundred twenty".