671112052057 has 8 divisors (see below), whose sum is σ = 685428702336. Its totient is φ = 656796971472.

The previous prime is 671112052049. The next prime is 671112052099. The reversal of 671112052057 is 750250211176.

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

It is a cyclic number.

It is not a de Polignac number, because 671112052057 - 2³ = 671112052049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671112052357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492858 + ... + 1259020.

It is an arithmetic number, because the mean of its divisors is an integer number (85678587792).

Almost surely, 2^671112052057 is an apocalyptic number.

It is an amenable number.

671112052057 is a deficient number, since it is larger than the sum of its proper divisors (14316650279).

671112052057 is a wasteful number, since it uses less digits than its factorization.

671112052057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784847.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 671112052057 in words is "six hundred seventy-one billion, one hundred twelve million, fifty-two thousand, fifty-seven".