3778528425 has 72 divisors (see below), whose sum is σ = 7281453600. Its totient is φ = 1723921920.

The previous prime is 3778528357. The next prime is 3778528427. The reversal of 3778528425 is 5248258773.

3778528425 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3778528425 - 2¹³ = 3778520233 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778528427) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3707566 + ... + 3708584.

It is an arithmetic number, because the mean of its divisors is an integer number (101131300).

Almost surely, 2^3778528425 is an apocalyptic number.

3778528425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3778528425 is a deficient number, since it is larger than the sum of its proper divisors (3502925175).

3778528425 is a wasteful number, since it uses less digits than its factorization.

3778528425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2043 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 51.

The square root of 3778528425 is about 61469.7358461869. The cubic root of 3778528425 is about 1557.5460576373.

The spelling of 3778528425 in words is "three billion, seven hundred seventy-eight million, five hundred twenty-eight thousand, four hundred twenty-five".