129267855467 has 2 divisors, whose sum is σ = 129267855468. Its totient is φ = 129267855466.

The previous prime is 129267855433. The next prime is 129267855487. The reversal of 129267855467 is 764558762921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129267855467 - 2³⁰ = 128194113643 is a prime.

It is not a weakly prime, because it can be changed into another prime (129267855487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64633927733 + 64633927734.

It is an arithmetic number, because the mean of its divisors is an integer number (64633927734).

Almost surely, 2^129267855467 is an apocalyptic number.

129267855467 is a deficient number, since it is larger than the sum of its proper divisors (1).

129267855467 is an equidigital number, since it uses as much as digits as its factorization.

129267855467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 62.

The spelling of 129267855467 in words is "one hundred twenty-nine billion, two hundred sixty-seven million, eight hundred fifty-five thousand, four hundred sixty-seven".