38509497203 has 2 divisors, whose sum is σ = 38509497204. Its totient is φ = 38509497202.

The previous prime is 38509497109. The next prime is 38509497209. The reversal of 38509497203 is 30279490583.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38509497203 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (38509497209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19254748601 + 19254748602.

It is an arithmetic number, because the mean of its divisors is an integer number (19254748602).

Almost surely, 2^38509497203 is an apocalyptic number.

38509497203 is a deficient number, since it is larger than the sum of its proper divisors (1).

38509497203 is an equidigital number, since it uses as much as digits as its factorization.

38509497203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 38509497203 in words is "thirty-eight billion, five hundred nine million, four hundred ninety-seven thousand, two hundred three".