4129725765 has 48 divisors (see below), whose sum is σ = 7690140864. Its totient is φ = 1884495360.

The previous prime is 4129725763. The next prime is 4129725793. The reversal of 4129725765 is 5675279214.

4129725765 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4129725765 - 2¹ = 4129725763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129725763) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 36067 + ... + 97776.

It is an arithmetic number, because the mean of its divisors is an integer number (160211268).

Almost surely, 2^4129725765 is an apocalyptic number.

It is an amenable number.

4129725765 is a deficient number, since it is larger than the sum of its proper divisors (3560415099).

4129725765 is a wasteful number, since it uses less digits than its factorization.

4129725765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133890 (or 133879 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 4129725765 is about 64262.9423929530. The cubic root of 4129725765 is about 1604.3793778705.

The spelling of 4129725765 in words is "four billion, one hundred twenty-nine million, seven hundred twenty-five thousand, seven hundred sixty-five".