41338531397 has 2 divisors, whose sum is σ = 41338531398. Its totient is φ = 41338531396.

The previous prime is 41338531393. The next prime is 41338531433. The reversal of 41338531397 is 79313583314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22620460801 + 18718070596 = 150401^2 + 136814^2 .

It is a cyclic number.

It is not a de Polignac number, because 41338531397 - 2² = 41338531393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41338531391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20669265698 + 20669265699.

It is an arithmetic number, because the mean of its divisors is an integer number (20669265699).

Almost surely, 2^41338531397 is an apocalyptic number.

It is an amenable number.

41338531397 is a deficient number, since it is larger than the sum of its proper divisors (1).

41338531397 is an equidigital number, since it uses as much as digits as its factorization.

41338531397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The spelling of 41338531397 in words is "forty-one billion, three hundred thirty-eight million, five hundred thirty-one thousand, three hundred ninety-seven".