671044571574764 has 24 divisors (see below), whose sum is σ = 1178962066607808. Its totient is φ = 334200493946880.

The previous prime is 671044571574757. The next prime is 671044571574821. The reversal of 671044571574764 is 467475175440176.

It is a junction number, because it is equal to n+sod(n) for n = 671044571574694 and 671044571574703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277183829 + ... + 279594284.

It is an arithmetic number, because the mean of its divisors is an integer number (49123419441992).

Almost surely, 2^{671044571574764} is an apocalyptic number.

It is an amenable number.

671044571574764 is a deficient number, since it is larger than the sum of its proper divisors (507917495033044).

671044571574764 is a wasteful number, since it uses less digits than its factorization.

671044571574764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556779305 (or 556779303 counting only the distinct ones).

The product of its (nonzero) digits is 553190400, while the sum is 68.

The spelling of 671044571574764 in words is "six hundred seventy-one trillion, forty-four billion, five hundred seventy-one million, five hundred seventy-four thousand, seven hundred sixty-four".