8181383601 has 16 divisors (see below), whose sum is σ = 11104863488. Its totient is φ = 5356573200.

The previous prime is 8181383599. The next prime is 8181383669. The reversal of 8181383601 is 1063831818.

It is not a de Polignac number, because 8181383601 - 2¹ = 8181383599 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 8181383601.

It is not an unprimeable number, because it can be changed into a prime (8181383681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5046 + ... + 128016.

It is an arithmetic number, because the mean of its divisors is an integer number (694053968).

Almost surely, 2^8181383601 is an apocalyptic number.

It is an amenable number.

8181383601 is a deficient number, since it is larger than the sum of its proper divisors (2923479887).

8181383601 is a wasteful number, since it uses less digits than its factorization.

8181383601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123372.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 8181383601 is about 90451.0011055710. The cubic root of 8181383601 is about 2015.0024814686.

The spelling of 8181383601 in words is "eight billion, one hundred eighty-one million, three hundred eighty-three thousand, six hundred one".