42038037397 has 2 divisors, whose sum is σ = 42038037398. Its totient is φ = 42038037396.

The previous prime is 42038037383. The next prime is 42038037499. The reversal of 42038037397 is 79373083024.

42038037397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30469098916 + 11568938481 = 174554^2 + 107559^2 .

It is a cyclic number.

It is not a de Polignac number, because 42038037397 - 2¹¹ = 42038035349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42038037317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21019018698 + 21019018699.

It is an arithmetic number, because the mean of its divisors is an integer number (21019018699).

Almost surely, 2^42038037397 is an apocalyptic number.

It is an amenable number.

42038037397 is a deficient number, since it is larger than the sum of its proper divisors (1).

42038037397 is an equidigital number, since it uses as much as digits as its factorization.

42038037397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 42038037397 in words is "forty-two billion, thirty-eight million, thirty-seven thousand, three hundred ninety-seven".