673350847621 has 4 divisors (see below), whose sum is σ = 675385140544. Its totient is φ = 671316554700.

The previous prime is 673350847601. The next prime is 673350847639. The reversal of 673350847621 is 126748053376.

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 673350847621 - 2⁹ = 673350847109 is a prime.

It is a super-2 number, since 2×673350847621² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673350847601) 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, 1017145965 + ... + 1017146626.

It is an arithmetic number, because the mean of its divisors is an integer number (168846285136).

Almost surely, 2^673350847621 is an apocalyptic number.

It is an amenable number.

673350847621 is a deficient number, since it is larger than the sum of its proper divisors (2034292923).

673350847621 is a wasteful number, since it uses less digits than its factorization.

673350847621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034292922.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 673350847621 in words is "six hundred seventy-three billion, three hundred fifty million, eight hundred forty-seven thousand, six hundred twenty-one".