2645490041 has 2 divisors, whose sum is σ = 2645490042. Its totient is φ = 2645490040.

The previous prime is 2645490031. The next prime is 2645490049. The reversal of 2645490041 is 1400945462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1598320441 + 1047169600 = 39979^2 + 32360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2645490041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2645489983 and 2645490010.

It is not a weakly prime, because it can be changed into another prime (2645490049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322745020 + 1322745021.

It is an arithmetic number, because the mean of its divisors is an integer number (1322745021).

Almost surely, 2^2645490041 is an apocalyptic number.

It is an amenable number.

2645490041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645490041 is an equidigital number, since it uses as much as digits as its factorization.

2645490041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2645490041 is about 51434.3274574481. The cubic root of 2645490041 is about 1383.0420257679.

The spelling of 2645490041 in words is "two billion, six hundred forty-five million, four hundred ninety thousand, forty-one".