4491432619 has 2 divisors, whose sum is σ = 4491432620. Its totient is φ = 4491432618.

The previous prime is 4491432611. The next prime is 4491432653. The reversal of 4491432619 is 9162341944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4491432619 - 2³ = 4491432611 is a prime.

It is a super-2 number, since 2×4491432619² = 40345933942034398322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4491432611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2245716309 + 2245716310.

It is an arithmetic number, because the mean of its divisors is an integer number (2245716310).

Almost surely, 2^4491432619 is an apocalyptic number.

4491432619 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491432619 is an equidigital number, since it uses as much as digits as its factorization.

4491432619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 4491432619 is about 67018.1514143743. The cubic root of 4491432619 is about 1649.9152229476.

The spelling of 4491432619 in words is "four billion, four hundred ninety-one million, four hundred thirty-two thousand, six hundred nineteen".