67539311713 has 8 divisors (see below), whose sum is σ = 71515309320. Its totient is φ = 63563658240.

The previous prime is 67539311687. The next prime is 67539311759. The reversal of 67539311713 is 31711393576.

67539311713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 58439678049 + 9099633664 = 241743^2 + 95392^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67539311713 - 2¹⁷ = 67539180641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67539311773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394893 + ... + 539461.

It is an arithmetic number, because the mean of its divisors is an integer number (8939413665).

Almost surely, 2^67539311713 is an apocalyptic number.

It is an amenable number.

67539311713 is a deficient number, since it is larger than the sum of its proper divisors (3975997607).

67539311713 is a wasteful number, since it uses less digits than its factorization.

67539311713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172067.

The product of its digits is 357210, while the sum is 46.

The spelling of 67539311713 in words is "sixty-seven billion, five hundred thirty-nine million, three hundred eleven thousand, seven hundred thirteen".