1616478419 has 2 divisors, whose sum is σ = 1616478420. Its totient is φ = 1616478418.

The previous prime is 1616478407. The next prime is 1616478421. The reversal of 1616478419 is 9148746161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1616478419 - 2²⁴ = 1599701203 is a prime.

It is a super-2 number, since 2×1616478419² = 5226004958185479122, which contains 22 as substring.

Together with 1616478421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1616478499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808239209 + 808239210.

It is an arithmetic number, because the mean of its divisors is an integer number (808239210).

Almost surely, 2^1616478419 is an apocalyptic number.

1616478419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616478419 is an equidigital number, since it uses as much as digits as its factorization.

1616478419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 1616478419 is about 40205.4526028498. The cubic root of 1616478419 is about 1173.6086549821.

The spelling of 1616478419 in words is "one billion, six hundred sixteen million, four hundred seventy-eight thousand, four hundred nineteen".