235986361109 has 2 divisors, whose sum is σ = 235986361110. Its totient is φ = 235986361108.

The previous prime is 235986361063. The next prime is 235986361139. The reversal of 235986361109 is 901163689532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160404255025 + 75582106084 = 400505^2 + 274922^2 .

It is a cyclic number.

It is not a de Polignac number, because 235986361109 - 2⁸ = 235986360853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235986361139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117993180554 + 117993180555.

It is an arithmetic number, because the mean of its divisors is an integer number (117993180555).

Almost surely, 2^235986361109 is an apocalyptic number.

It is an amenable number.

235986361109 is a deficient number, since it is larger than the sum of its proper divisors (1).

235986361109 is an equidigital number, since it uses as much as digits as its factorization.

235986361109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 235986361109 in words is "two hundred thirty-five billion, nine hundred eighty-six million, three hundred sixty-one thousand, one hundred nine".