38969738897 has 2 divisors, whose sum is σ = 38969738898. Its totient is φ = 38969738896.

The previous prime is 38969738887. The next prime is 38969738921. The reversal of 38969738897 is 79883796983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29580904081 + 9388834816 = 171991^2 + 96896^2 .

It is a cyclic number.

It is not a de Polignac number, because 38969738897 - 2²² = 38965544593 is a prime.

It is not a weakly prime, because it can be changed into another prime (38969738887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19484869448 + 19484869449.

It is an arithmetic number, because the mean of its divisors is an integer number (19484869449).

Almost surely, 2^38969738897 is an apocalyptic number.

It is an amenable number.

38969738897 is a deficient number, since it is larger than the sum of its proper divisors (1).

38969738897 is an equidigital number, since it uses as much as digits as its factorization.

38969738897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987614208, while the sum is 77.

The spelling of 38969738897 in words is "thirty-eight billion, nine hundred sixty-nine million, seven hundred thirty-eight thousand, eight hundred ninety-seven".