671043670037 has 8 divisors (see below), whose sum is σ = 765171967896. Its totient is φ = 582988165632.

The previous prime is 671043669979. The next prime is 671043670039. The reversal of 671043670037 is 730076340176.

It can be written as a sum of positive squares in 4 ways, for example, as 33930008401 + 637113661636 = 184201^2 + 798194^2 .

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 671043670037 - 2²⁶ = 670976561173 is a prime.

It is a super-2 number, since 2×671043670037² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671043670037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671043670039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518198128 + ... + 1518198569.

It is an arithmetic number, because the mean of its divisors is an integer number (95646495987).

Almost surely, 2^671043670037 is an apocalyptic number.

It is an amenable number.

671043670037 is a deficient number, since it is larger than the sum of its proper divisors (94128297859).

671043670037 is a wasteful number, since it uses less digits than its factorization.

671043670037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036396727.

The product of its (nonzero) digits is 444528, while the sum is 44.

The spelling of 671043670037 in words is "six hundred seventy-one billion, forty-three million, six hundred seventy thousand, thirty-seven".