3875536581 has 8 divisors (see below), whose sum is σ = 5905579584. Its totient is φ = 2214592320.

The previous prime is 3875536523. The next prime is 3875536627. The reversal of 3875536581 is 1856355783.

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

It is not a de Polignac number, because 3875536581 - 2⁷ = 3875536453 is a prime.

It is a super-2 number, since 2×3875536581² = 30039567581338339122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3875536681) 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, 92274660 + ... + 92274701.

It is an arithmetic number, because the mean of its divisors is an integer number (738197448).

Almost surely, 2^3875536581 is an apocalyptic number.

It is an amenable number.

3875536581 is a deficient number, since it is larger than the sum of its proper divisors (2030043003).

3875536581 is a wasteful number, since it uses less digits than its factorization.

3875536581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184549371.

The product of its digits is 3024000, while the sum is 51.

The square root of 3875536581 is about 62253.8077630598. The cubic root of 3875536581 is about 1570.7628219968.

The spelling of 3875536581 in words is "three billion, eight hundred seventy-five million, five hundred thirty-six thousand, five hundred eighty-one".