38746081641247 has 2 divisors, whose sum is σ = 38746081641248. Its totient is φ = 38746081641246.

The previous prime is 38746081641229. The next prime is 38746081641317. The reversal of 38746081641247 is 74214618064783.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38746081641247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38746081641847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19373040820623 + 19373040820624.

It is an arithmetic number, because the mean of its divisors is an integer number (19373040820624).

Almost surely, 2^{38746081641247} is an apocalyptic number.

38746081641247 is a deficient number, since it is larger than the sum of its proper divisors (1).

38746081641247 is an equidigital number, since it uses as much as digits as its factorization.

38746081641247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43352064, while the sum is 61.

The spelling of 38746081641247 in words is "thirty-eight trillion, seven hundred forty-six billion, eighty-one million, six hundred forty-one thousand, two hundred forty-seven".