3721453819 has 4 divisors (see below), whose sum is σ = 3766290696. Its totient is φ = 3676616944.

The previous prime is 3721453789. The next prime is 3721453837. The reversal of 3721453819 is 9183541273.

3721453819 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3721453819 - 2¹¹ = 3721451771 is a prime.

It is a super-2 number, since 2×3721453819² = 27698437053899369522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3721453849) 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, 22418314 + ... + 22418479.

It is an arithmetic number, because the mean of its divisors is an integer number (941572674).

Almost surely, 2^3721453819 is an apocalyptic number.

3721453819 is a deficient number, since it is larger than the sum of its proper divisors (44836877).

3721453819 is an equidigital number, since it uses as much as digits as its factorization.

3721453819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44836876.

The product of its digits is 181440, while the sum is 43.

The square root of 3721453819 is about 61003.7197144568. The cubic root of 3721453819 is about 1549.6640019532.

The spelling of 3721453819 in words is "three billion, seven hundred twenty-one million, four hundred fifty-three thousand, eight hundred nineteen".