3811430945 has 12 divisors (see below), whose sum is σ = 5320446804. Its totient is φ = 2613552480.

The previous prime is 3811430941. The next prime is 3811430969. The reversal of 3811430945 is 5490341183.

3811430945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2119589521 + 1691841424 = 46039^2 + 41132^2 .

It is not a de Polignac number, because 3811430945 - 2² = 3811430941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3811430899 and 3811430908.

It is not an unprimeable number, because it can be changed into a prime (3811430941) 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, 7778186 + ... + 7778675.

It is an arithmetic number, because the mean of its divisors is an integer number (443370567).

Almost surely, 2^3811430945 is an apocalyptic number.

3811430945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3811430945 is a deficient number, since it is larger than the sum of its proper divisors (1509015859).

3811430945 is a wasteful number, since it uses less digits than its factorization.

3811430945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15556880 (or 15556873 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 3811430945 is about 61736.7876148411. The cubic root of 3811430945 is about 1562.0539110124.

The spelling of 3811430945 in words is "three billion, eight hundred eleven million, four hundred thirty thousand, nine hundred forty-five".