731722368064 has 14 divisors (see below), whose sum is σ = 1452011574254. Its totient is φ = 365861184000.

The previous prime is 731722368061. The next prime is 731722368079. The reversal of 731722368064 is 460863227137.

It can be written as a sum of positive squares in only one way, i.e., 627010585600 + 104711782464 = 791840^2 + 323592^2 .

It is a junction number, because it is equal to n+sod(n) for n = 731722367999 and 731722368017.

It is not an unprimeable number, because it can be changed into a prime (731722368061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5716580937 + ... + 5716581064.

Almost surely, 2^731722368064 is an apocalyptic number.

It is an amenable number.

731722368064 is a deficient number, since it is larger than the sum of its proper divisors (720289206190).

731722368064 is a wasteful number, since it uses less digits than its factorization.

731722368064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433162013 (or 11433162003 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 731722368064 in words is "seven hundred thirty-one billion, seven hundred twenty-two million, three hundred sixty-eight thousand, sixty-four".