673400003637 has 4 divisors (see below), whose sum is σ = 897866671520. Its totient is φ = 448933335756.

The previous prime is 673400003593. The next prime is 673400003671. The reversal of 673400003637 is 736300004376.

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 not a de Polignac number, because 673400003637 - 2³⁹ = 123644189749 is a prime.

It is a super-2 number, since 2×673400003637² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 673400003595 and 673400003604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673400003137) 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 3 ways as a sum of consecutive naturals, for example, 112233333937 + ... + 112233333942.

It is an arithmetic number, because the mean of its divisors is an integer number (224466667880).

Almost surely, 2^673400003637 is an apocalyptic number.

It is an amenable number.

673400003637 is a deficient number, since it is larger than the sum of its proper divisors (224466667883).

673400003637 is a wasteful number, since it uses less digits than its factorization.

673400003637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224466667882.

The product of its (nonzero) digits is 190512, while the sum is 39.

The spelling of 673400003637 in words is "six hundred seventy-three billion, four hundred million, three thousand, six hundred thirty-seven".