4493619749 has 4 divisors (see below), whose sum is σ = 4556910240. Its totient is φ = 4430329260.

The previous prime is 4493619743. The next prime is 4493619761. The reversal of 4493619749 is 9479163944.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 4493619749 - 2¹⁶ = 4493554213 is a prime.

It is a super-3 number, since 3×4493619749³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4493619694 and 4493619703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4493619743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31645139 + ... + 31645280.

It is an arithmetic number, because the mean of its divisors is an integer number (1139227560).

Almost surely, 2^4493619749 is an apocalyptic number.

It is an amenable number.

4493619749 is a deficient number, since it is larger than the sum of its proper divisors (63290491).

4493619749 is an equidigital number, since it uses as much as digits as its factorization.

4493619749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63290490.

The product of its digits is 5878656, while the sum is 56.

The square root of 4493619749 is about 67034.4668733928. The cubic root of 4493619749 is about 1650.1829915199.

The spelling of 4493619749 in words is "four billion, four hundred ninety-three million, six hundred nineteen thousand, seven hundred forty-nine".