3778622925 has 48 divisors (see below), whose sum is σ = 7788882432. Its totient is φ = 1570334400.

The previous prime is 3778622917. The next prime is 3778622971. The reversal of 3778622925 is 5292268773.

It is not a de Polignac number, because 3778622925 - 2³ = 3778622917 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 321379 + ... + 332928.

It is an arithmetic number, because the mean of its divisors is an integer number (162268384).

Almost surely, 2^3778622925 is an apocalyptic number.

3778622925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3778622925 is an abundant number, since it is smaller than the sum of its proper divisors (4010259507).

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

3778622925 is a wasteful number, since it uses less digits than its factorization.

3778622925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654338 (or 654333 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 3778622925 is about 61470.5045123269. The cubic root of 3778622925 is about 1557.5590421345.

The spelling of 3778622925 in words is "three billion, seven hundred seventy-eight million, six hundred twenty-two thousand, nine hundred twenty-five".