38790484209 has 9 divisors (see below), whose sum is σ = 56031552889. Its totient is φ = 25859928900.

The previous prime is 38790484207. The next prime is 38790484219. The reversal of 38790484209 is 90248409783.

The square root of 38790484209 is 196953.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 38790484209 - 2¹ = 38790484207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38790484207) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 558034 + ... + 623684.

Almost surely, 2^38790484209 is an apocalyptic number.

38790484209 is the 196953-rd square number.

38790484209 is the 98477-th centered octagonal number.

It is an amenable number.

38790484209 is a deficient number, since it is larger than the sum of its proper divisors (17241068680).

38790484209 is an frugal number, since it uses more digits than its factorization.

38790484209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131308 (or 65654 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 38790484209 in words is "thirty-eight billion, seven hundred ninety million, four hundred eighty-four thousand, two hundred nine".