38884637797 has 2 divisors, whose sum is σ = 38884637798. Its totient is φ = 38884637796.

The previous prime is 38884637789. The next prime is 38884637927. The reversal of 38884637797 is 79773648883.

It is a happy number.

38884637797 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., 23007125761 + 15877512036 = 151681^2 + 126006^2 .

It is a cyclic number.

It is not a de Polignac number, because 38884637797 - 2³ = 38884637789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38884637747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19442318898 + 19442318899.

It is an arithmetic number, because the mean of its divisors is an integer number (19442318899).

Almost surely, 2^38884637797 is an apocalyptic number.

It is an amenable number.

38884637797 is a deficient number, since it is larger than the sum of its proper divisors (1).

38884637797 is an equidigital number, since it uses as much as digits as its factorization.

38884637797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 341397504, while the sum is 70.

The spelling of 38884637797 in words is "thirty-eight billion, eight hundred eighty-four million, six hundred thirty-seven thousand, seven hundred ninety-seven".