38538718843 has 2 divisors, whose sum is σ = 38538718844. Its totient is φ = 38538718842.

The previous prime is 38538718819. The next prime is 38538718861. The reversal of 38538718843 is 34881783583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38538718843 - 2²¹ = 38536621691 is a prime.

It is not a weakly prime, because it can be changed into another prime (38538718243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19269359421 + 19269359422.

It is an arithmetic number, because the mean of its divisors is an integer number (19269359422).

Almost surely, 2^38538718843 is an apocalyptic number.

38538718843 is a deficient number, since it is larger than the sum of its proper divisors (1).

38538718843 is an equidigital number, since it uses as much as digits as its factorization.

38538718843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 58.

The spelling of 38538718843 in words is "thirty-eight billion, five hundred thirty-eight million, seven hundred eighteen thousand, eight hundred forty-three".