673587050821 has 8 divisors (see below), whose sum is σ = 680287297824. Its totient is φ = 666887413200.

The previous prime is 673587050797. The next prime is 673587050837. The reversal of 673587050821 is 128050785376.

It is a happy number.

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 673587050821 - 2¹⁵ = 673587018053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673587050021) 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, 2258026 + ... + 2538868.

It is an arithmetic number, because the mean of its divisors is an integer number (85035912228).

Almost surely, 2^673587050821 is an apocalyptic number.

It is an amenable number.

673587050821 is a deficient number, since it is larger than the sum of its proper divisors (6700247003).

673587050821 is a wasteful number, since it uses less digits than its factorization.

673587050821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304691.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 673587050821 in words is "six hundred seventy-three billion, five hundred eighty-seven million, fifty thousand, eight hundred twenty-one".