667434194273 has 8 divisors (see below), whose sum is σ = 832125748800. Its totient is φ = 520078592880.

The previous prime is 667434194243. The next prime is 667434194281. The reversal of 667434194273 is 372491434766.

667434194273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 667434194273 - 2⁶ = 667434194209 is a prime.

It is a super-4 number, since 4×667434194273⁴ (a number of 48 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667434194213) 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, 4333988198 + ... + 4333988351.

It is an arithmetic number, because the mean of its divisors is an integer number (104015718600).

Almost surely, 2^667434194273 is an apocalyptic number.

It is an amenable number.

667434194273 is a deficient number, since it is larger than the sum of its proper divisors (164691554527).

667434194273 is a wasteful number, since it uses less digits than its factorization.

667434194273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667976567.

The product of its digits is 18289152, while the sum is 56.

The spelling of 667434194273 in words is "six hundred sixty-seven billion, four hundred thirty-four million, one hundred ninety-four thousand, two hundred seventy-three".