38148805249 has 2 divisors, whose sum is σ = 38148805250. Its totient is φ = 38148805248.

The previous prime is 38148805237. The next prime is 38148805259. The reversal of 38148805249 is 94250884183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28033474624 + 10115330625 = 167432^2 + 100575^2 .

It is a cyclic number.

It is not a de Polignac number, because 38148805249 - 2⁵ = 38148805217 is a prime.

It is a super-2 number, since 2×38148805249² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38148805196 and 38148805205.

It is not a weakly prime, because it can be changed into another prime (38148805259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19074402624 + 19074402625.

It is an arithmetic number, because the mean of its divisors is an integer number (19074402625).

Almost surely, 2^38148805249 is an apocalyptic number.

It is an amenable number.

38148805249 is a deficient number, since it is larger than the sum of its proper divisors (1).

38148805249 is an equidigital number, since it uses as much as digits as its factorization.

38148805249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 38148805249 in words is "thirty-eight billion, one hundred forty-eight million, eight hundred five thousand, two hundred forty-nine".