38217520481 has 4 divisors (see below), whose sum is σ = 43677166272. Its totient is φ = 32757874692.

The previous prime is 38217520477. The next prime is 38217520511. The reversal of 38217520481 is 18402571283.

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 38217520481 - 2² = 38217520477 is a prime.

It is a super-3 number, since 3×38217520481³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38217520381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2729822885 + ... + 2729822898.

It is an arithmetic number, because the mean of its divisors is an integer number (10919291568).

Almost surely, 2^38217520481 is an apocalyptic number.

It is an amenable number.

38217520481 is a deficient number, since it is larger than the sum of its proper divisors (5459645791).

38217520481 is an equidigital number, since it uses as much as digits as its factorization.

38217520481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459645790.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 38217520481 in words is "thirty-eight billion, two hundred seventeen million, five hundred twenty thousand, four hundred eighty-one".