1916648603 has 2 divisors, whose sum is σ = 1916648604. Its totient is φ = 1916648602.

The previous prime is 1916648557. The next prime is 1916648611. The reversal of 1916648603 is 3068466191.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1916648603 - 2²⁶ = 1849539739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1916648633) 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 as a sum of consecutive naturals, namely, 958324301 + 958324302.

It is an arithmetic number, because the mean of its divisors is an integer number (958324302).

Almost surely, 2^1916648603 is an apocalyptic number.

1916648603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1916648603 is an equidigital number, since it uses as much as digits as its factorization.

1916648603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1916648603 is about 43779.5454864483. The cubic root of 1916648603 is about 1242.1694166447.

The spelling of 1916648603 in words is "one billion, nine hundred sixteen million, six hundred forty-eight thousand, six hundred three".