11649739925 has 6 divisors (see below), whose sum is σ = 14445677538. Its totient is φ = 9319791920.

The previous prime is 11649739919. The next prime is 11649739931. The reversal of 11649739925 is 52993794611.

11649739925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11649739919) and next prime (11649739931).

It can be written as a sum of positive squares in 3 ways, for example, as 475981489 + 11173758436 = 21817^2 + 105706^2 .

It is not a de Polignac number, because 11649739925 - 2⁴ = 11649739909 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 232994774 + ... + 232994823.

It is an arithmetic number, because the mean of its divisors is an integer number (2407612923).

Almost surely, 2^11649739925 is an apocalyptic number.

It is an amenable number.

11649739925 is a deficient number, since it is larger than the sum of its proper divisors (2795937613).

11649739925 is an equidigital number, since it uses as much as digits as its factorization.

11649739925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465989607 (or 465989602 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 56.

The spelling of 11649739925 in words is "eleven billion, six hundred forty-nine million, seven hundred thirty-nine thousand, nine hundred twenty-five".