731873004144 has 80 divisors (see below), whose sum is σ = 1898387876352. Its totient is φ = 242962585344.

The previous prime is 731873004139. The next prime is 731873004167. The reversal of 731873004144 is 441400378137.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 731873004096 and 731873004105.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 68631357 + ... + 68642019.

Almost surely, 2^731873004144 is an apocalyptic number.

It is an amenable number.

731873004144 is an abundant number, since it is smaller than the sum of its proper divisors (1166514872208).

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

731873004144 is a wasteful number, since it uses less digits than its factorization.

731873004144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16374 (or 16368 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 731873004144 in words is "seven hundred thirty-one billion, eight hundred seventy-three million, four thousand, one hundred forty-four".