67271674642221 has 48 divisors (see below), whose sum is σ = 108895122316800. Its totient is φ = 36763237681632.

The previous prime is 67271674642219. The next prime is 67271674642241. The reversal of 67271674642221 is 12224647617276.

It is not a de Polignac number, because 67271674642221 - 2¹ = 67271674642219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67271674642241) 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, 17817310 + ... + 21260288.

It is an arithmetic number, because the mean of its divisors is an integer number (2268648381600).

Almost surely, 2^{67271674642221} is an apocalyptic number.

It is an amenable number.

67271674642221 is a deficient number, since it is larger than the sum of its proper divisors (41623447674579).

67271674642221 is a wasteful number, since it uses less digits than its factorization.

67271674642221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448798 (or 3448791 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 57.

The spelling of 67271674642221 in words is "sixty-seven trillion, two hundred seventy-one billion, six hundred seventy-four million, six hundred forty-two thousand, two hundred twenty-one".