129227759488 has 16 divisors (see below), whose sum is σ = 257445927360. Its totient is φ = 64613879680.

The previous prime is 129227759449. The next prime is 129227759491. The reversal of 129227759488 is 884957722921.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent 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 as a sum of consecutive naturals, namely, 504795808 + ... + 504796063.

It is an arithmetic number, because the mean of its divisors is an integer number (16090370460).

Almost surely, 2^129227759488 is an apocalyptic number.

It is an amenable number.

129227759488 is a deficient number, since it is larger than the sum of its proper divisors (128218167872).

129227759488 is an equidigital number, since it uses as much as digits as its factorization.

129227759488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009591885 (or 1009591873 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 64.

The spelling of 129227759488 in words is "one hundred twenty-nine billion, two hundred twenty-seven million, seven hundred fifty-nine thousand, four hundred eighty-eight".