229897204769 has 2 divisors, whose sum is σ = 229897204770. Its totient is φ = 229897204768.

The previous prime is 229897204639. The next prime is 229897204841. The reversal of 229897204769 is 967402798922.

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., 139810183744 + 90087021025 = 373912^2 + 300145^2 .

It is a cyclic number.

It is not a de Polignac number, because 229897204769 - 2³² = 225602237473 is a prime.

It is a super-2 number, since 2×229897204769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229897203769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114948602384 + 114948602385.

It is an arithmetic number, because the mean of its divisors is an integer number (114948602385).

Almost surely, 2^229897204769 is an apocalyptic number.

It is an amenable number.

229897204769 is a deficient number, since it is larger than the sum of its proper divisors (1).

229897204769 is an equidigital number, since it uses as much as digits as its factorization.

229897204769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 229897204769 in words is "two hundred twenty-nine billion, eight hundred ninety-seven million, two hundred four thousand, seven hundred sixty-nine".