38419793398631 has 2 divisors, whose sum is σ = 38419793398632. Its totient is φ = 38419793398630.

The previous prime is 38419793398601. The next prime is 38419793398663. The reversal of 38419793398631 is 13689339791483.

38419793398631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38419793398631 is a prime.

It is a super-2 number, since 2×38419793398631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38419793398601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19209896699315 + 19209896699316.

It is an arithmetic number, because the mean of its divisors is an integer number (19209896699316).

Almost surely, 2^{38419793398631} is an apocalyptic number.

38419793398631 is a deficient number, since it is larger than the sum of its proper divisors (1).

38419793398631 is an equidigital number, since it uses as much as digits as its factorization.

38419793398631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 634894848, while the sum is 74.

The spelling of 38419793398631 in words is "thirty-eight trillion, four hundred nineteen billion, seven hundred ninety-three million, three hundred ninety-eight thousand, six hundred thirty-one".