129898333069 has 2 divisors, whose sum is σ = 129898333070. Its totient is φ = 129898333068.

The previous prime is 129898333051. The next prime is 129898333093. The reversal of 129898333069 is 960333898921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125858205225 + 4040127844 = 354765^2 + 63562^2 .

It is a cyclic number.

It is not a de Polignac number, because 129898333069 - 2¹¹ = 129898331021 is a prime.

It is a super-2 number, since 2×129898333069² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129898332998 and 129898333016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129898333039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64949166534 + 64949166535.

It is an arithmetic number, because the mean of its divisors is an integer number (64949166535).

Almost surely, 2^129898333069 is an apocalyptic number.

It is an amenable number.

129898333069 is a deficient number, since it is larger than the sum of its proper divisors (1).

129898333069 is an equidigital number, since it uses as much as digits as its factorization.

129898333069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15116544, while the sum is 61.

The spelling of 129898333069 in words is "one hundred twenty-nine billion, eight hundred ninety-eight million, three hundred thirty-three thousand, sixty-nine".