129440462275 has 6 divisors (see below), whose sum is σ = 160506173252. Its totient is φ = 103552369800.

The previous prime is 129440462267. The next prime is 129440462381. The reversal of 129440462275 is 572264044921.

It is not a de Polignac number, because 129440462275 - 2³ = 129440462267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2588809221 + ... + 2588809270.

Almost surely, 2^129440462275 is an apocalyptic number.

129440462275 is a deficient number, since it is larger than the sum of its proper divisors (31065710977).

129440462275 is an equidigital number, since it uses as much as digits as its factorization.

129440462275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177618501 (or 5177618496 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 129440462275 in words is "one hundred twenty-nine billion, four hundred forty million, four hundred sixty-two thousand, two hundred seventy-five".