673822380321 has 6 divisors (see below), whose sum is σ = 973298993810. Its totient is φ = 449214920208.

The previous prime is 673822380311. The next prime is 673822380337. The reversal of 673822380321 is 123083228376.

673822380321 is a `hidden beast` number, since 6 + 7 + 382 + 238 + 0 + 32 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 634713362721 + 39109017600 = 796689^2 + 197760^2 .

It is not a de Polignac number, because 673822380321 - 2⁷ = 673822380193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673822380311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37434576676 + ... + 37434576693.

Almost surely, 2^673822380321 is an apocalyptic number.

It is an amenable number.

673822380321 is a deficient number, since it is larger than the sum of its proper divisors (299476613489).

673822380321 is a wasteful number, since it uses less digits than its factorization.

673822380321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74869153375 (or 74869153372 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 673822380321 in words is "six hundred seventy-three billion, eight hundred twenty-two million, three hundred eighty thousand, three hundred twenty-one".