3813666353 has 4 divisors (see below), whose sum is σ = 4358475840. Its totient is φ = 3268856868.

The previous prime is 3813666349. The next prime is 3813666379. The reversal of 3813666353 is 3536663183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3536663183 = 43 ⋅82247981.

It is a cyclic number.

It is not a de Polignac number, because 3813666353 - 2² = 3813666349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3813666323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 272404733 + ... + 272404746.

It is an arithmetic number, because the mean of its divisors is an integer number (1089618960).

Almost surely, 2^3813666353 is an apocalyptic number.

It is an amenable number.

3813666353 is a deficient number, since it is larger than the sum of its proper divisors (544809487).

3813666353 is an equidigital number, since it uses as much as digits as its factorization.

3813666353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544809486.

The product of its digits is 699840, while the sum is 44.

The square root of 3813666353 is about 61754.8893044105. The cubic root of 3813666353 is about 1562.3592333816.

The spelling of 3813666353 in words is "three billion, eight hundred thirteen million, six hundred sixty-six thousand, three hundred fifty-three".