3750128429 has 4 divisors (see below), whose sum is σ = 3750530784. Its totient is φ = 3749726076.

The previous prime is 3750128387. The next prime is 3750128467. The reversal of 3750128429 is 9248210573.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3750128429 - 2¹⁶ = 3750062893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3750128029) 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 3 ways as a sum of consecutive naturals, for example, 186857 + ... + 205950.

It is an arithmetic number, because the mean of its divisors is an integer number (937632696).

Almost surely, 2^3750128429 is an apocalyptic number.

It is an amenable number.

3750128429 is a deficient number, since it is larger than the sum of its proper divisors (402355).

3750128429 is an equidigital number, since it uses as much as digits as its factorization.

3750128429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402354.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 3750128429 is about 61238.2921789953. The cubic root of 3750128429 is about 1553.6339887195.

The spelling of 3750128429 in words is "three billion, seven hundred fifty million, one hundred twenty-eight thousand, four hundred twenty-nine".