233923802806537 has 2 divisors, whose sum is σ = 233923802806538. Its totient is φ = 233923802806536.

The previous prime is 233923802806417. The next prime is 233923802806543. The reversal of 233923802806537 is 735608208329332.

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., 116989403674896 + 116934399131641 = 10816164^2 + 10813621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233923802806537 is a prime.

It is not a weakly prime, because it can be changed into another prime (233923802806237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116961901403268 + 116961901403269.

It is an arithmetic number, because the mean of its divisors is an integer number (116961901403269).

Almost surely, 2^{233923802806537} is an apocalyptic number.

It is an amenable number.

233923802806537 is a deficient number, since it is larger than the sum of its proper divisors (1).

233923802806537 is an equidigital number, since it uses as much as digits as its factorization.

233923802806537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 61.

The spelling of 233923802806537 in words is "two hundred thirty-three trillion, nine hundred twenty-three billion, eight hundred two million, eight hundred six thousand, five hundred thirty-seven".