38948485217 has 2 divisors, whose sum is σ = 38948485218. Its totient is φ = 38948485216.

The previous prime is 38948485159. The next prime is 38948485241. The reversal of 38948485217 is 71258484983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37106702161 + 1841783056 = 192631^2 + 42916^2 .

It is a cyclic number.

It is not a de Polignac number, because 38948485217 - 2⁶ = 38948485153 is a prime.

It is not a weakly prime, because it can be changed into another prime (38948485117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19474242608 + 19474242609.

It is an arithmetic number, because the mean of its divisors is an integer number (19474242609).

Almost surely, 2^38948485217 is an apocalyptic number.

It is an amenable number.

38948485217 is a deficient number, since it is larger than the sum of its proper divisors (1).

38948485217 is an equidigital number, since it uses as much as digits as its factorization.

38948485217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15482880, while the sum is 59.

The spelling of 38948485217 in words is "thirty-eight billion, nine hundred forty-eight million, four hundred eighty-five thousand, two hundred seventeen".