671631228033 has 4 divisors (see below), whose sum is σ = 895508304048. Its totient is φ = 447754152020.

The previous prime is 671631228017. The next prime is 671631228101. The reversal of 671631228033 is 330822136176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671631228033 - 2⁴ = 671631228017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671631223033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111938538003 + ... + 111938538008.

It is an arithmetic number, because the mean of its divisors is an integer number (223877076012).

Almost surely, 2^671631228033 is an apocalyptic number.

It is an amenable number.

671631228033 is a deficient number, since it is larger than the sum of its proper divisors (223877076015).

671631228033 is a wasteful number, since it uses less digits than its factorization.

671631228033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223877076014.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 671631228033 in words is "six hundred seventy-one billion, six hundred thirty-one million, two hundred twenty-eight thousand, thirty-three".