621234036441 has 24 divisors (see below), whose sum is σ = 932693973120. Its totient is φ = 398107629216.

The previous prime is 621234036433. The next prime is 621234036463. The reversal of 621234036441 is 144630432126.

621234036441 is a `hidden beast` number, since 6 + 2 + 1 + 2 + 3 + 4 + 0 + 3 + 644 + 1 = 666.

621234036441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 621234036441 - 2³ = 621234036433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621234036396 and 621234036405.

It is not an unprimeable number, because it can be changed into a prime (621234036641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11210721 + ... + 11265998.

It is an arithmetic number, because the mean of its divisors is an integer number (38862248880).

Almost surely, 2^621234036441 is an apocalyptic number.

It is an amenable number.

621234036441 is a deficient number, since it is larger than the sum of its proper divisors (311459936679).

621234036441 is a wasteful number, since it uses less digits than its factorization.

621234036441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22476845 (or 22476842 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 621234036441 its reverse (144630432126), we get a palindrome (765864468567).

The spelling of 621234036441 in words is "six hundred twenty-one billion, two hundred thirty-four million, thirty-six thousand, four hundred forty-one".