38530646309 has 4 divisors (see below), whose sum is σ = 38533499904. Its totient is φ = 38527792716.

The previous prime is 38530646299. The next prime is 38530646317. The reversal of 38530646309 is 90364603583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38530646309 - 2³² = 34235679013 is a prime.

It is a super-2 number, since 2×38530646309² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38530646909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406447 + ... + 1433580.

It is an arithmetic number, because the mean of its divisors is an integer number (9633374976).

Almost surely, 2^38530646309 is an apocalyptic number.

It is an amenable number.

38530646309 is a deficient number, since it is larger than the sum of its proper divisors (2853595).

38530646309 is a wasteful number, since it uses less digits than its factorization.

38530646309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853594.

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 38530646309 in words is "thirty-eight billion, five hundred thirty million, six hundred forty-six thousand, three hundred nine".