671049559067 has 4 divisors (see below), whose sum is σ = 671052887640. Its totient is φ = 671046230496.

The previous prime is 671049559031. The next prime is 671049559091. The reversal of 671049559067 is 760955940176.

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 671049559067 - 2²⁰ = 671048510491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671049558997 and 671049559015.

It is not an unprimeable number, because it can be changed into a prime (671049559567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340942 + ... + 1772067.

It is an arithmetic number, because the mean of its divisors is an integer number (167763221910).

Almost surely, 2^671049559067 is an apocalyptic number.

671049559067 is a deficient number, since it is larger than the sum of its proper divisors (3328573).

671049559067 is a wasteful number, since it uses less digits than its factorization.

671049559067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328572.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 671049559067 in words is "six hundred seventy-one billion, forty-nine million, five hundred fifty-nine thousand, sixty-seven".