731693504673 has 12 divisors (see below), whose sum is σ = 1058967030420. Its totient is φ = 486837325536.

The previous prime is 731693504657. The next prime is 731693504687. The reversal of 731693504673 is 376405396137.

It is a happy number.

731693504673 is a `hidden beast` number, since 7 + 3 + 1 + 69 + 3 + 504 + 6 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 694060608609 + 37632896064 = 833103^2 + 193992^2 .

It is not a de Polignac number, because 731693504673 - 2⁴ = 731693504657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (731693504623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79857186 + ... + 79866347.

It is an arithmetic number, because the mean of its divisors is an integer number (88247252535).

Almost surely, 2^731693504673 is an apocalyptic number.

It is an amenable number.

731693504673 is a deficient number, since it is larger than the sum of its proper divisors (327273525747).

731693504673 is a wasteful number, since it uses less digits than its factorization.

731693504673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159724048 (or 159724045 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 54.

The spelling of 731693504673 in words is "seven hundred thirty-one billion, six hundred ninety-three million, five hundred four thousand, six hundred seventy-three".