4129726997 has 16 divisors (see below), whose sum is σ = 4525424640. Its totient is φ = 3737454000.

The previous prime is 4129726987. The next prime is 4129727029. The reversal of 4129726997 is 7996279214.

It is a cyclic number.

It is not a de Polignac number, because 4129726997 - 2¹⁰ = 4129725973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129726967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3587372 + ... + 3588522.

It is an arithmetic number, because the mean of its divisors is an integer number (282839040).

Almost surely, 2^4129726997 is an apocalyptic number.

It is an amenable number.

4129726997 is a deficient number, since it is larger than the sum of its proper divisors (395697643).

4129726997 is a wasteful number, since it uses less digits than its factorization.

4129726997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344.

The product of its digits is 3429216, while the sum is 56.

The square root of 4129726997 is about 64262.9519785700. The cubic root of 4129726997 is about 1604.3795374126.

The spelling of 4129726997 in words is "four billion, one hundred twenty-nine million, seven hundred twenty-six thousand, nine hundred ninety-seven".