1648485859 has 4 divisors (see below), whose sum is σ = 1649882880. Its totient is φ = 1647088840.

The previous prime is 1648485833. The next prime is 1648485911. The reversal of 1648485859 is 9585848461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9585848461 = 7 ⋅1369406923.

It is a cyclic number.

It is not a de Polignac number, because 1648485859 - 2⁷ = 1648485731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1648486859) 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, 696739 + ... + 699100.

It is an arithmetic number, because the mean of its divisors is an integer number (412470720).

Almost surely, 2^1648485859 is an apocalyptic number.

1648485859 is a deficient number, since it is larger than the sum of its proper divisors (1397021).

1648485859 is a wasteful number, since it uses less digits than its factorization.

1648485859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397020.

The product of its digits is 11059200, while the sum is 58.

The square root of 1648485859 is about 40601.5499580989. The cubic root of 1648485859 is about 1181.3041835713.

The spelling of 1648485859 in words is "one billion, six hundred forty-eight million, four hundred eighty-five thousand, eight hundred fifty-nine".