234365423557 has 2 divisors, whose sum is σ = 234365423558. Its totient is φ = 234365423556.

The previous prime is 234365423507. The next prime is 234365423629. The reversal of 234365423557 is 755324563432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231220569316 + 3144854241 = 480854^2 + 56079^2 .

It is a cyclic number.

It is not a de Polignac number, because 234365423557 - 2¹¹ = 234365421509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234365423557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234365423507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117182711778 + 117182711779.

It is an arithmetic number, because the mean of its divisors is an integer number (117182711779).

Almost surely, 2^234365423557 is an apocalyptic number.

It is an amenable number.

234365423557 is a deficient number, since it is larger than the sum of its proper divisors (1).

234365423557 is an equidigital number, since it uses as much as digits as its factorization.

234365423557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072000, while the sum is 49.

Adding to 234365423557 its reverse (755324563432), we get a palindrome (989689986989).

The spelling of 234365423557 in words is "two hundred thirty-four billion, three hundred sixty-five million, four hundred twenty-three thousand, five hundred fifty-seven".