731468729864 has 16 divisors (see below), whose sum is σ = 1371582195900. Its totient is φ = 365713477632.

The previous prime is 731468729839. The next prime is 731468729869. The reversal of 731468729864 is 468927864137.

It can be written as a sum of positive squares in 2 ways, for example, as 729367240900 + 2101488964 = 854030^2 + 45842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 731468729864.

It is not an unprimeable number, because it can be changed into a prime (731468729869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2461577 + ... + 2742680.

Almost surely, 2^731468729864 is an apocalyptic number.

It is an amenable number.

731468729864 is a deficient number, since it is larger than the sum of its proper divisors (640113466036).

731468729864 is a wasteful number, since it uses less digits than its factorization.

731468729864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221832 (or 5221828 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 65.

The spelling of 731468729864 in words is "seven hundred thirty-one billion, four hundred sixty-eight million, seven hundred twenty-nine thousand, eight hundred sixty-four".