4869661490 has 16 divisors (see below), whose sum is σ = 8787930840. Its totient is φ = 1942855680.

The previous prime is 4869661421. The next prime is 4869661519. The reversal of 4869661490 is 941669684.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4087172761 + 782488729 = 63931^2 + 27973^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622031 + ... + 629810.

Almost surely, 2^4869661490 is an apocalyptic number.

4869661490 is a deficient number, since it is larger than the sum of its proper divisors (3918269350).

4869661490 is a wasteful number, since it uses less digits than its factorization.

4869661490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252237.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 4869661490 is about 69782.9598827679. The cubic root of 4869661490 is about 1694.9865547151.

The spelling of 4869661490 in words is "four billion, eight hundred sixty-nine million, six hundred sixty-one thousand, four hundred ninety".