1648841365 has 32 divisors (see below), whose sum is σ = 2097216000. Its totient is φ = 1241982720.

The previous prime is 1648841347. The next prime is 1648841377. The reversal of 1648841365 is 5631488461.

It is not a de Polignac number, because 1648841365 - 2¹¹ = 1648839317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2494135 + ... + 2494795.

It is an arithmetic number, because the mean of its divisors is an integer number (65538000).

Almost surely, 2^1648841365 is an apocalyptic number.

It is an amenable number.

1648841365 is a deficient number, since it is larger than the sum of its proper divisors (448374635).

1648841365 is a wasteful number, since it uses less digits than its factorization.

1648841365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its digits is 552960, while the sum is 46.

The square root of 1648841365 is about 40605.9277076636. The cubic root of 1648841365 is about 1181.3890959446.

The spelling of 1648841365 in words is "one billion, six hundred forty-eight million, eight hundred forty-one thousand, three hundred sixty-five".