673865310722 has 32 divisors (see below), whose sum is σ = 1020119583600. Its totient is φ = 333837987840.

The previous prime is 673865310673. The next prime is 673865310731. The reversal of 673865310722 is 227013568376.

It can be written as a sum of positive squares in 8 ways, for example, as 334429733401 + 339435577321 = 578299^2 + 582611^2 .

It is a super-2 number, since 2×673865310722² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334091858 + ... + 334093874.

Almost surely, 2^673865310722 is an apocalyptic number.

673865310722 is a deficient number, since it is larger than the sum of its proper divisors (346254272878).

673865310722 is a wasteful number, since it uses less digits than its factorization.

673865310722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 673865310722 in words is "six hundred seventy-three billion, eight hundred sixty-five million, three hundred ten thousand, seven hundred twenty-two".