38690848643 has 2 divisors, whose sum is σ = 38690848644. Its totient is φ = 38690848642.

The previous prime is 38690848601. The next prime is 38690848657. The reversal of 38690848643 is 34684809683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38690848643 - 2¹⁶ = 38690783107 is a prime.

It is not a weakly prime, because it can be changed into another prime (38690848663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19345424321 + 19345424322.

It is an arithmetic number, because the mean of its divisors is an integer number (19345424322).

Almost surely, 2^38690848643 is an apocalyptic number.

38690848643 is a deficient number, since it is larger than the sum of its proper divisors (1).

38690848643 is an equidigital number, since it uses as much as digits as its factorization.

38690848643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23887872, while the sum is 59.

The spelling of 38690848643 in words is "thirty-eight billion, six hundred ninety million, eight hundred forty-eight thousand, six hundred forty-three".