38044037797 has 2 divisors, whose sum is σ = 38044037798. Its totient is φ = 38044037796.

The previous prime is 38044037747. The next prime is 38044037827. The reversal of 38044037797 is 79773044083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33740546596 + 4303491201 = 183686^2 + 65601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38044037797 is a prime.

It is a super-2 number, since 2×38044037797² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38044037747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19022018898 + 19022018899.

It is an arithmetic number, because the mean of its divisors is an integer number (19022018899).

Almost surely, 2^38044037797 is an apocalyptic number.

It is an amenable number.

38044037797 is a deficient number, since it is larger than the sum of its proper divisors (1).

38044037797 is an equidigital number, since it uses as much as digits as its factorization.

38044037797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 38044037797 in words is "thirty-eight billion, forty-four million, thirty-seven thousand, seven hundred ninety-seven".