67271075720 has 64 divisors (see below), whose sum is σ = 155335415040. Its totient is φ = 26210246400.

The previous prime is 67271075693. The next prime is 67271075723. The reversal of 67271075720 is 2757017276.

It is not an unprimeable number, because it can be changed into a prime (67271075723) by changing a digit.

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, 117485 + ... + 385155.

It is an arithmetic number, because the mean of its divisors is an integer number (2427115860).

Almost surely, 2^67271075720 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 67271075720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77667707520).

67271075720 is an abundant number, since it is smaller than the sum of its proper divisors (88064339320).

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

67271075720 is a wasteful number, since it uses less digits than its factorization.

67271075720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267846 (or 267842 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 44.

The spelling of 67271075720 in words is "sixty-seven billion, two hundred seventy-one million, seventy-five thousand, seven hundred twenty".