4038357649 has 2 divisors, whose sum is σ = 4038357650. Its totient is φ = 4038357648.

The previous prime is 4038357643. The next prime is 4038357671. The reversal of 4038357649 is 9467538304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2279394049 + 1758963600 = 47743^2 + 41940^2 .

It is a cyclic number.

It is not a de Polignac number, because 4038357649 - 2³¹ = 1890874001 is a prime.

It is not a weakly prime, because it can be changed into another prime (4038357643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2019178824 + 2019178825.

It is an arithmetic number, because the mean of its divisors is an integer number (2019178825).

Almost surely, 2^4038357649 is an apocalyptic number.

It is an amenable number.

4038357649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4038357649 is an equidigital number, since it uses as much as digits as its factorization.

4038357649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 4038357649 is about 63548.0735270551. The cubic root of 4038357649 is about 1592.4589997059.

The spelling of 4038357649 in words is "four billion, thirty-eight million, three hundred fifty-seven thousand, six hundred forty-nine".