623646232261 has 8 divisors (see below), whose sum is σ = 671625289440. Its totient is φ = 575668070832.

The previous prime is 623646232247. The next prime is 623646232301. The reversal of 623646232261 is 162232646326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 623646232261 - 2²⁵ = 623612677829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623646232661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169930 + ... + 2440468.

It is an arithmetic number, because the mean of its divisors is an integer number (83953161180).

Almost surely, 2^623646232261 is an apocalyptic number.

It is an amenable number.

623646232261 is a deficient number, since it is larger than the sum of its proper divisors (47979057179).

623646232261 is a wasteful number, since it uses less digits than its factorization.

623646232261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447875.

The product of its digits is 746496, while the sum is 43.

Adding to 623646232261 its reverse (162232646326), we get a palindrome (785878878587).

The spelling of 623646232261 in words is "six hundred twenty-three billion, six hundred forty-six million, two hundred thirty-two thousand, two hundred sixty-one".