129338052496 has 15 divisors (see below), whose sum is σ = 250595263921. Its totient is φ = 64668306976.

The previous prime is 129338052463. The next prime is 129338052509. The reversal of 129338052496 is 694250833921.

The square root of 129338052496 is 359636.

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., 16495806096 + 112842246400 = 128436^2 + 335920^2 .

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 2 ways as a sum of consecutive naturals, for example, 1393590 + ... + 1483498.

Almost surely, 2^129338052496 is an apocalyptic number.

129338052496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

129338052496 is the 359636-th square number.

It is an amenable number.

129338052496 is a deficient number, since it is larger than the sum of its proper divisors (121257211425).

129338052496 is an frugal number, since it uses more digits than its factorization.

129338052496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179826 (or 89911 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 129338052496 in words is "one hundred twenty-nine billion, three hundred thirty-eight million, fifty-two thousand, four hundred ninety-six".