129388304510404 has 9 divisors (see below), whose sum is σ = 226429572705357. Its totient is φ = 64694140880304.

The previous prime is 129388304510369. The next prime is 129388304510411. The reversal of 129388304510404 is 404015403883921.

The square root of 129388304510404 is 11374898.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 74063270424004 + 55325034086400 = 8606002^2 + 7438080^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19906072 + ... + 25593520.

Almost surely, 2^{129388304510404} is an apocalyptic number.

129388304510404 is the 11374898-th square number.

It is an amenable number.

129388304510404 is a deficient number, since it is larger than the sum of its proper divisors (97041268194953).

129388304510404 is an frugal number, since it uses more digits than its factorization.

129388304510404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11374902 (or 5687451 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 129388304510404 in words is "one hundred twenty-nine trillion, three hundred eighty-eight billion, three hundred four million, five hundred ten thousand, four hundred four".