11841785425 has 12 divisors (see below), whose sum is σ = 14709280396. Its totient is φ = 9456998400.

The previous prime is 11841785413. The next prime is 11841785429. The reversal of 11841785425 is 52458714811.

It can be written as a sum of positive squares in 6 ways, for example, as 54774801 + 11787010624 = 7401^2 + 108568^2 .

It is not a de Polignac number, because 11841785425 - 2¹⁹ = 11841261137 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11841785429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396036 + ... + 424885.

Almost surely, 2^11841785425 is an apocalyptic number.

It is an amenable number.

11841785425 is a deficient number, since it is larger than the sum of its proper divisors (2867494971).

11841785425 is an equidigital number, since it uses as much as digits as its factorization.

11841785425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821508 (or 821503 counting only the distinct ones).

The product of its digits is 358400, while the sum is 46.

The spelling of 11841785425 in words is "eleven billion, eight hundred forty-one million, seven hundred eighty-five thousand, four hundred twenty-five".