38843634931 has 2 divisors, whose sum is σ = 38843634932. Its totient is φ = 38843634930.

The previous prime is 38843634871. The next prime is 38843634937. The reversal of 38843634931 is 13943634883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38843634931 - 2⁷ = 38843634803 is a prime.

It is a super-2 number, since 2×38843634931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38843634937) 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, 19421817465 + 19421817466.

It is an arithmetic number, because the mean of its divisors is an integer number (19421817466).

Almost surely, 2^38843634931 is an apocalyptic number.

38843634931 is a deficient number, since it is larger than the sum of its proper divisors (1).

38843634931 is an equidigital number, since it uses as much as digits as its factorization.

38843634931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 52.

The spelling of 38843634931 in words is "thirty-eight billion, eight hundred forty-three million, six hundred thirty-four thousand, nine hundred thirty-one".