38733067649 has 2 divisors, whose sum is σ = 38733067650. Its totient is φ = 38733067648.

The previous prime is 38733067627. The next prime is 38733067663. The reversal of 38733067649 is 94676033783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19584043249 + 19149024400 = 139943^2 + 138380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38733067649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38733067594 and 38733067603.

It is not a weakly prime, because it can be changed into another prime (38733066649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19366533824 + 19366533825.

It is an arithmetic number, because the mean of its divisors is an integer number (19366533825).

Almost surely, 2^38733067649 is an apocalyptic number.

It is an amenable number.

38733067649 is a deficient number, since it is larger than the sum of its proper divisors (1).

38733067649 is an equidigital number, since it uses as much as digits as its factorization.

38733067649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13716864, while the sum is 56.

The spelling of 38733067649 in words is "thirty-eight billion, seven hundred thirty-three million, sixty-seven thousand, six hundred forty-nine".