38845742591 has 2 divisors, whose sum is σ = 38845742592. Its totient is φ = 38845742590.

The previous prime is 38845742563. The next prime is 38845742597. The reversal of 38845742591 is 19524754883.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38845742591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38845742597) 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, 19422871295 + 19422871296.

It is an arithmetic number, because the mean of its divisors is an integer number (19422871296).

Almost surely, 2^38845742591 is an apocalyptic number.

38845742591 is a deficient number, since it is larger than the sum of its proper divisors (1).

38845742591 is an equidigital number, since it uses as much as digits as its factorization.

38845742591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 56.

It can be divided in two parts, 3884 and 5742591, that added together give a palindrome (5746475).

The spelling of 38845742591 in words is "thirty-eight billion, eight hundred forty-five million, seven hundred forty-two thousand, five hundred ninety-one".