2643448041 has 56 divisors (see below), whose sum is σ = 4327834056. Its totient is φ = 1604033280.

The previous prime is 2643448039. The next prime is 2643448043. The reversal of 2643448041 is 1408443462.

2643448041 is a `hidden beast` number, since 2 + 643 + 4 + 4 + 8 + 0 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2643448039) and next prime (2643448043).

It can be written as a sum of positive squares in 4 ways, for example, as 524226816 + 2119221225 = 22896^2 + 46035^2 .

It is not a de Polignac number, because 2643448041 - 2¹ = 2643448039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2643447987 and 2643448005.

It is not an unprimeable number, because it can be changed into a prime (2643448043) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 689911 + ... + 693731.

It is an arithmetic number, because the mean of its divisors is an integer number (77282751).

Almost surely, 2^2643448041 is an apocalyptic number.

It is an amenable number.

2643448041 is a deficient number, since it is larger than the sum of its proper divisors (1684386015).

2643448041 is an equidigital number, since it uses as much as digits as its factorization.

2643448041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925 (or 3910 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 2643448041 is about 51414.4730693605. The cubic root of 2643448041 is about 1382.6860868272.

The spelling of 2643448041 in words is "two billion, six hundred forty-three million, four hundred forty-eight thousand, forty-one".