38942215069 has 2 divisors, whose sum is σ = 38942215070. Its totient is φ = 38942215068.

The previous prime is 38942215033. The next prime is 38942215121. The reversal of 38942215069 is 96051224983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26126843044 + 12815372025 = 161638^2 + 113205^2 .

It is a cyclic number.

It is not a de Polignac number, because 38942215069 - 2¹⁷ = 38942083997 is a prime.

It is a super-2 number, since 2×38942215069² (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 (38942615069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19471107534 + 19471107535.

It is an arithmetic number, because the mean of its divisors is an integer number (19471107535).

Almost surely, 2^38942215069 is an apocalyptic number.

It is an amenable number.

38942215069 is a deficient number, since it is larger than the sum of its proper divisors (1).

38942215069 is an equidigital number, since it uses as much as digits as its factorization.

38942215069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 38942215069 in words is "thirty-eight billion, nine hundred forty-two million, two hundred fifteen thousand, sixty-nine".