4821126129 has 32 divisors (see below), whose sum is σ = 7240732800. Its totient is φ = 3170119680.

The previous prime is 4821126109. The next prime is 4821126133. The reversal of 4821126129 is 9216211284.

4821126129 is a `hidden beast` number, since 4 + 8 + 21 + 12 + 612 + 9 = 666.

It is not a de Polignac number, because 4821126129 - 2⁷ = 4821126001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4821126093 and 4821126102.

It is not an unprimeable number, because it can be changed into a prime (4821126109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640017 + ... + 647505.

It is an arithmetic number, because the mean of its divisors is an integer number (226272900).

Almost surely, 2^4821126129 is an apocalyptic number.

It is an amenable number.

4821126129 is a deficient number, since it is larger than the sum of its proper divisors (2419606671).

4821126129 is a wasteful number, since it uses less digits than its factorization.

4821126129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7822 (or 7816 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 4821126129 is about 69434.3296143918. The cubic root of 4821126129 is about 1689.3364958377.

It can be divided in two parts, 48211261 and 29, that added together give a triangular number (48211290 = T₉₈₁₉).

The spelling of 4821126129 in words is "four billion, eight hundred twenty-one million, one hundred twenty-six thousand, one hundred twenty-nine".