67312474071 has 4 divisors (see below), whose sum is σ = 89749965432. Its totient is φ = 44874982712.

The previous prime is 67312474057. The next prime is 67312474091. The reversal of 67312474071 is 17047421376.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67312474071 - 2²¹ = 67310376919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67312474091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11218745676 + ... + 11218745681.

It is an arithmetic number, because the mean of its divisors is an integer number (22437491358).

Almost surely, 2^67312474071 is an apocalyptic number.

67312474071 is a deficient number, since it is larger than the sum of its proper divisors (22437491361).

67312474071 is a wasteful number, since it uses less digits than its factorization.

67312474071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22437491360.

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 67312474071 in words is "sixty-seven billion, three hundred twelve million, four hundred seventy-four thousand, seventy-one".