3751945728 has 40 divisors (see below), whose sum is σ = 9995422008. Its totient is φ = 1250648064.

The previous prime is 3751945709. The next prime is 3751945733. The reversal of 3751945728 is 8275491573.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1219801 + ... + 1222872.

Almost surely, 2^3751945728 is an apocalyptic number.

It is an amenable number.

3751945728 is an abundant number, since it is smaller than the sum of its proper divisors (6243476280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3751945728 is an equidigital number, since it uses as much as digits as its factorization.

3751945728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442694 (or 2442678 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 3751945728 is about 61253.1283119483. The cubic root of 3751945728 is about 1553.8849100411.

The spelling of 3751945728 in words is "three billion, seven hundred fifty-one million, nine hundred forty-five thousand, seven hundred twenty-eight".