723481813461 has 48 divisors (see below), whose sum is σ = 1123031068992. Its totient is φ = 412552419840.

The previous prime is 723481813451. The next prime is 723481813517. The reversal of 723481813461 is 164318184327.

It is not a de Polignac number, because 723481813461 - 2⁷ = 723481813333 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 723481813461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723481813451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21872011 + ... + 21905063.

It is an arithmetic number, because the mean of its divisors is an integer number (23396480604).

Almost surely, 2^723481813461 is an apocalyptic number.

It is an amenable number.

723481813461 is a deficient number, since it is larger than the sum of its proper divisors (399549255531).

723481813461 is a wasteful number, since it uses less digits than its factorization.

723481813461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36642 (or 36631 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

Adding to 723481813461 its reverse (164318184327), we get a palindrome (887799997788).

The spelling of 723481813461 in words is "seven hundred twenty-three billion, four hundred eighty-one million, eight hundred thirteen thousand, four hundred sixty-one".