673903517057 has 4 divisors (see below), whose sum is σ = 673909120560. Its totient is φ = 673897913556.

The previous prime is 673903517039. The next prime is 673903517071. The reversal of 673903517057 is 750715309376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 673903517057 - 2¹⁶ = 673903451521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673903517957) 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, 2617307 + ... + 2863232.

It is an arithmetic number, because the mean of its divisors is an integer number (168477280140).

Almost surely, 2^673903517057 is an apocalyptic number.

It is an amenable number.

673903517057 is a deficient number, since it is larger than the sum of its proper divisors (5603503).

673903517057 is a wasteful number, since it uses less digits than its factorization.

673903517057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603502.

The product of its (nonzero) digits is 4167450, while the sum is 53.

The spelling of 673903517057 in words is "six hundred seventy-three billion, nine hundred three million, five hundred seventeen thousand, fifty-seven".