229622977769 has 2 divisors, whose sum is σ = 229622977770. Its totient is φ = 229622977768.

The previous prime is 229622977723. The next prime is 229622977811. The reversal of 229622977769 is 967779226922.

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., 207218875369 + 22404102400 = 455213^2 + 149680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229622977769 is a prime.

It is a super-2 number, since 2×229622977769² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 229622977699 and 229622977708.

It is not a weakly prime, because it can be changed into another prime (229622977669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114811488884 + 114811488885.

It is an arithmetic number, because the mean of its divisors is an integer number (114811488885).

Almost surely, 2^229622977769 is an apocalyptic number.

It is an amenable number.

229622977769 is a deficient number, since it is larger than the sum of its proper divisors (1).

229622977769 is an equidigital number, since it uses as much as digits as its factorization.

229622977769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144027072, while the sum is 68.

The spelling of 229622977769 in words is "two hundred twenty-nine billion, six hundred twenty-two million, nine hundred seventy-seven thousand, seven hundred sixty-nine".