671572810339 has 4 divisors (see below), whose sum is σ = 672124638024. Its totient is φ = 671020982656.

The previous prime is 671572810309. The next prime is 671572810361. The reversal of 671572810339 is 933018275176.

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 671572810339 - 2¹⁹ = 671572286051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671572810309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275912017 + ... + 275914450.

It is an arithmetic number, because the mean of its divisors is an integer number (168031159506).

Almost surely, 2^671572810339 is an apocalyptic number.

671572810339 is a deficient number, since it is larger than the sum of its proper divisors (551827685).

671572810339 is a wasteful number, since it uses less digits than its factorization.

671572810339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551827684.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 671572810339 in words is "six hundred seventy-one billion, five hundred seventy-two million, eight hundred ten thousand, three hundred thirty-nine".