67641063460747 has 8 divisors (see below), whose sum is σ = 77372909643776. Its totient is φ = 57926426557032.

The previous prime is 67641063460721. The next prime is 67641063460769. The reversal of 67641063460747 is 74706436014676.

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

It is a cyclic number.

It is not a de Polignac number, because 67641063460747 - 2¹⁹ = 67641062936459 is a prime.

It is a super-2 number, since 2×67641063460747² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67641063460247) 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, 4302311403 + ... + 4302327124.

It is an arithmetic number, because the mean of its divisors is an integer number (9671613705472).

Almost surely, 2^{67641063460747} is an apocalyptic number.

67641063460747 is a deficient number, since it is larger than the sum of its proper divisors (9731846183029).

67641063460747 is a wasteful number, since it uses less digits than its factorization.

67641063460747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8604639657.

The product of its (nonzero) digits is 85349376, while the sum is 61.

The spelling of 67641063460747 in words is "sixty-seven trillion, six hundred forty-one billion, sixty-three million, four hundred sixty thousand, seven hundred forty-seven".