731974769664 has 176 divisors, whose sum is σ = 2132384726016. Its totient is φ = 222230937600.

The previous prime is 731974769653. The next prime is 731974769693. The reversal of 731974769664 is 466967479137.

It is a congruent number.

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, 1392879 + ... + 1845009.

Almost surely, 2^731974769664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731974769664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066192363008).

731974769664 is an abundant number, since it is smaller than the sum of its proper divisors (1400409956352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

731974769664 is a wasteful number, since it uses less digits than its factorization.

731974769664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452202 (or 452184 counting only the distinct ones).

The product of its digits is 288054144, while the sum is 69.

The spelling of 731974769664 in words is "seven hundred thirty-one billion, nine hundred seventy-four million, seven hundred sixty-nine thousand, six hundred sixty-four".