3752867821825 has 12 divisors (see below), whose sum is σ = 4653746084268. Its totient is φ = 3002171686400.

The previous prime is 3752867821819. The next prime is 3752867821877. The reversal of 3752867821825 is 5281287682573.

3752867821825 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 1937232²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 294223795776 + 3458644026049 = 542424^2 + 1859743^2 .

It is not a de Polignac number, because 3752867821825 - 2¹¹ = 3752867819777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2437156 + ... + 3666805.

It is an arithmetic number, because the mean of its divisors is an integer number (387812173689).

Almost surely, 2^{3752867821825} is an apocalyptic number.

It is an amenable number.

3752867821825 is a deficient number, since it is larger than the sum of its proper divisors (900878262443).

3752867821825 is a wasteful number, since it uses less digits than its factorization.

3752867821825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128564 (or 6128559 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 64.

The spelling of 3752867821825 in words is "three trillion, seven hundred fifty-two billion, eight hundred sixty-seven million, eight hundred twenty-one thousand, eight hundred twenty-five".