3813427431 has 28 divisors (see below), whose sum is σ = 6237313800. Its totient is φ = 2311163280.

The previous prime is 3813427427. The next prime is 3813427441. The reversal of 3813427431 is 1347243183.

3813427431 is a `hidden beast` number, since 381 + 3 + 4 + 274 + 3 + 1 = 666.

3813427431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3813427431 - 2² = 3813427427 is a prime.

It is a super-2 number, since 2×3813427431² = 29084457543006519522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813427421) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 229756 + ... + 245793.

Almost surely, 2^3813427431 is an apocalyptic number.

3813427431 is a deficient number, since it is larger than the sum of its proper divisors (2423886369).

3813427431 is an equidigital number, since it uses as much as digits as its factorization.

3813427431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475578 (or 475563 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 3813427431 is about 61752.9548361858. The cubic root of 3813427431 is about 1562.3266060047.

The spelling of 3813427431 in words is "three billion, eight hundred thirteen million, four hundred twenty-seven thousand, four hundred thirty-one".