67385541832 has 64 divisors (see below), whose sum is σ = 148402108800. Its totient is φ = 28084492800.

The previous prime is 67385541829. The next prime is 67385541863. The reversal of 67385541832 is 23814558376.

It is a happy number.

It is a super-2 number, since 2×67385541832² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67385541832.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490332 + ... + 612532.

It is an arithmetic number, because the mean of its divisors is an integer number (2318782950).

Almost surely, 2^67385541832 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 67385541832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74201054400).

67385541832 is an abundant number, since it is smaller than the sum of its proper divisors (81016566968).

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

67385541832 is a wasteful number, since it uses less digits than its factorization.

67385541832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122486 (or 122482 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The spelling of 67385541832 in words is "sixty-seven billion, three hundred eighty-five million, five hundred forty-one thousand, eight hundred thirty-two".