233620443649 has 2 divisors, whose sum is σ = 233620443650. Its totient is φ = 233620443648.

The previous prime is 233620443613. The next prime is 233620443673. The reversal of 233620443649 is 946344026332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167587890625 + 66032553024 = 409375^2 + 256968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233620443649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 233620443599 and 233620443608.

It is not a weakly prime, because it can be changed into another prime (233620443689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116810221824 + 116810221825.

It is an arithmetic number, because the mean of its divisors is an integer number (116810221825).

Almost surely, 2^233620443649 is an apocalyptic number.

It is an amenable number.

233620443649 is a deficient number, since it is larger than the sum of its proper divisors (1).

233620443649 is an equidigital number, since it uses as much as digits as its factorization.

233620443649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 46.

The spelling of 233620443649 in words is "two hundred thirty-three billion, six hundred twenty million, four hundred forty-three thousand, six hundred forty-nine".