4072642549 has 2 divisors, whose sum is σ = 4072642550. Its totient is φ = 4072642548.

The previous prime is 4072642517. The next prime is 4072642597. The reversal of 4072642549 is 9452462704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3980348100 + 92294449 = 63090^2 + 9607^2 .

It is a cyclic number.

It is not a de Polignac number, because 4072642549 - 2⁵ = 4072642517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4072648549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036321274 + 2036321275.

It is an arithmetic number, because the mean of its divisors is an integer number (2036321275).

Almost surely, 2^4072642549 is an apocalyptic number.

It is an amenable number.

4072642549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4072642549 is an equidigital number, since it uses as much as digits as its factorization.

4072642549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 4072642549 is about 63817.2590213651. The cubic root of 4072642549 is about 1596.9528657765.

The spelling of 4072642549 in words is "four billion, seventy-two million, six hundred forty-two thousand, five hundred forty-nine".