229210977769 has 2 divisors, whose sum is σ = 229210977770. Its totient is φ = 229210977768.

The previous prime is 229210977761. The next prime is 229210977803. The reversal of 229210977769 is 967779012922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188779822144 + 40431155625 = 434488^2 + 201075^2 .

It is a cyclic number.

It is not a de Polignac number, because 229210977769 - 2³ = 229210977761 is a prime.

It is a super-2 number, since 2×229210977769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229210977761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114605488884 + 114605488885.

It is an arithmetic number, because the mean of its divisors is an integer number (114605488885).

Almost surely, 2^229210977769 is an apocalyptic number.

It is an amenable number.

229210977769 is a deficient number, since it is larger than the sum of its proper divisors (1).

229210977769 is an equidigital number, since it uses as much as digits as its factorization.

229210977769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12002256, while the sum is 61.

The spelling of 229210977769 in words is "two hundred twenty-nine billion, two hundred ten million, nine hundred seventy-seven thousand, seven hundred sixty-nine".