38824504691641 has 4 divisors (see below), whose sum is σ = 38824525640484. Its totient is φ = 38824483742800.

The previous prime is 38824504691603. The next prime is 38824504691653. The reversal of 38824504691641 is 14619640542883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18577789558416 + 20246715133225 = 4310196^2 + 4499635^2 .

It is a cyclic number.

It is not a de Polignac number, because 38824504691641 - 2¹⁵ = 38824504658873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38824504691641.

It is not an unprimeable number, because it can be changed into a prime (38824504691741) 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, 7392130 + ... + 11501851.

It is an arithmetic number, because the mean of its divisors is an integer number (9706131410121).

Almost surely, 2^{38824504691641} is an apocalyptic number.

It is an amenable number.

38824504691641 is a deficient number, since it is larger than the sum of its proper divisors (20948843).

38824504691641 is a wasteful number, since it uses less digits than its factorization.

38824504691641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20948842.

The product of its (nonzero) digits is 39813120, while the sum is 61.

The spelling of 38824504691641 in words is "thirty-eight trillion, eight hundred twenty-four billion, five hundred four million, six hundred ninety-one thousand, six hundred forty-one".