673653051254621 has 8 divisors (see below), whose sum is σ = 707419653938304. Its totient is φ = 640259560203120.

The previous prime is 673653051254563. The next prime is 673653051254633. The reversal of 673653051254621 is 126452150356376.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673653051254621 is a prime.

It is a super-2 number, since 2×673653051254621² (a number of 30 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 (673653051254641) 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, 93277904345 + ... + 93277911566.

It is an arithmetic number, because the mean of its divisors is an integer number (88427456742288).

Almost surely, 2^{673653051254621} is an apocalyptic number.

It is an amenable number.

673653051254621 is a deficient number, since it is larger than the sum of its proper divisors (33766602683683).

673653051254621 is a wasteful number, since it uses less digits than its factorization.

673653051254621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186555816091.

The product of its (nonzero) digits is 27216000, while the sum is 56.

The spelling of 673653051254621 in words is "six hundred seventy-three trillion, six hundred fifty-three billion, fifty-one million, two hundred fifty-four thousand, six hundred twenty-one".