38353209931 has 2 divisors, whose sum is σ = 38353209932. Its totient is φ = 38353209930.

The previous prime is 38353209911. The next prime is 38353209971. The reversal of 38353209931 is 13990235383.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38353209931 is a prime.

It is a super-2 number, since 2×38353209931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38353209911) 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, 19176604965 + 19176604966.

It is an arithmetic number, because the mean of its divisors is an integer number (19176604966).

Almost surely, 2^38353209931 is an apocalyptic number.

38353209931 is a deficient number, since it is larger than the sum of its proper divisors (1).

38353209931 is an equidigital number, since it uses as much as digits as its factorization.

38353209931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 46.

The spelling of 38353209931 in words is "thirty-eight billion, three hundred fifty-three million, two hundred nine thousand, nine hundred thirty-one".