38889894401 has 2 divisors, whose sum is σ = 38889894402. Its totient is φ = 38889894400.

The previous prime is 38889894347. The next prime is 38889894437. The reversal of 38889894401 is 10449898883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35864784400 + 3025110001 = 189380^2 + 55001^2 .

It is an emirp because it is prime and its reverse (10449898883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38889894401 - 2¹⁴ = 38889878017 is a prime.

It is a super-2 number, since 2×38889894401² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38889891401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19444947200 + 19444947201.

It is an arithmetic number, because the mean of its divisors is an integer number (19444947201).

Almost surely, 2^38889894401 is an apocalyptic number.

It is an amenable number.

38889894401 is a deficient number, since it is larger than the sum of its proper divisors (1).

38889894401 is an equidigital number, since it uses as much as digits as its factorization.

38889894401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15925248, while the sum is 62.

The spelling of 38889894401 in words is "thirty-eight billion, eight hundred eighty-nine million, eight hundred ninety-four thousand, four hundred one".