671052645393 has 8 divisors (see below), whose sum is σ = 963562772928. Its totient is φ = 412955474064.

The previous prime is 671052645383. The next prime is 671052645407. The reversal of 671052645393 is 393546250176.

It is a happy number.

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

It is not a de Polignac number, because 671052645393 - 2¹⁸ = 671052383249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671052645383) 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, 8603239005 + ... + 8603239082.

It is an arithmetic number, because the mean of its divisors is an integer number (120445346616).

Almost surely, 2^671052645393 is an apocalyptic number.

It is an amenable number.

671052645393 is a deficient number, since it is larger than the sum of its proper divisors (292510127535).

671052645393 is a wasteful number, since it uses less digits than its factorization.

671052645393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17206478103.

The product of its (nonzero) digits is 4082400, while the sum is 51.

The spelling of 671052645393 in words is "six hundred seventy-one billion, fifty-two million, six hundred forty-five thousand, three hundred ninety-three".