233868186413 has 2 divisors, whose sum is σ = 233868186414. Its totient is φ = 233868186412.

The previous prime is 233868186403. The next prime is 233868186421. The reversal of 233868186413 is 314681868332.

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., 132439949929 + 101428236484 = 363923^2 + 318478^2 .

It is a cyclic number.

It is not a de Polignac number, because 233868186413 - 2¹⁰ = 233868185389 is a prime.

It is a super-2 number, since 2×233868186413² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233868186403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116934093206 + 116934093207.

It is an arithmetic number, because the mean of its divisors is an integer number (116934093207).

Almost surely, 2^233868186413 is an apocalyptic number.

It is an amenable number.

233868186413 is a deficient number, since it is larger than the sum of its proper divisors (1).

233868186413 is an equidigital number, since it uses as much as digits as its factorization.

233868186413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 53.

The spelling of 233868186413 in words is "two hundred thirty-three billion, eight hundred sixty-eight million, one hundred eighty-six thousand, four hundred thirteen".