673873661260801 has 4 divisors (see below), whose sum is σ = 695611521301504. Its totient is φ = 652135801220100.

The previous prime is 673873661260799. The next prime is 673873661260853. The reversal of 673873661260801 is 108062166378376.

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 673873661260801 - 2¹ = 673873661260799 is a prime.

It is a super-2 number, since 2×673873661260801² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673873661260861) 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, 10868930020305 + ... + 10868930020366.

It is an arithmetic number, because the mean of its divisors is an integer number (173902880325376).

Almost surely, 2^{673873661260801} is an apocalyptic number.

It is an amenable number.

673873661260801 is a deficient number, since it is larger than the sum of its proper divisors (21737860040703).

673873661260801 is a wasteful number, since it uses less digits than its factorization.

673873661260801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21737860040702.

The product of its (nonzero) digits is 73156608, while the sum is 64.

The spelling of 673873661260801 in words is "six hundred seventy-three trillion, eight hundred seventy-three billion, six hundred sixty-one million, two hundred sixty thousand, eight hundred one".