38535971533 has 8 divisors (see below), whose sum is σ = 39070307768. Its totient is φ = 38001809664.

The previous prime is 38535971519. The next prime is 38535971549. The reversal of 38535971533 is 33517953583.

38535971533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5329292004 + 33206679529 = 73002^2 + 182227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38535971533 - 2³³ = 29946036941 is a prime.

It is a super-2 number, since 2×38535971533² (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 (38535971233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438091 + ... + 518647.

It is an arithmetic number, because the mean of its divisors is an integer number (4883788471).

Almost surely, 2^38535971533 is an apocalyptic number.

It is an amenable number.

38535971533 is a deficient number, since it is larger than the sum of its proper divisors (534336235).

38535971533 is an equidigital number, since it uses as much as digits as its factorization.

38535971533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87183.

The product of its digits is 5103000, while the sum is 52.

The spelling of 38535971533 in words is "thirty-eight billion, five hundred thirty-five million, nine hundred seventy-one thousand, five hundred thirty-three".