18847571041 has 6 divisors (see below), whose sum is σ = 20408908470. Its totient is φ = 17397757728.

The previous prime is 18847571021. The next prime is 18847571107. The reversal of 18847571041 is 14017574881.

It can be written as a sum of positive squares in 3 ways, for example, as 4243600 + 18843327441 = 2060^2 + 137271^2 .

It is not a de Polignac number, because 18847571041 - 2⁵ = 18847571009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18847570982 and 18847571000.

It is not an unprimeable number, because it can be changed into a prime (18847571021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55761876 + ... + 55762213.

It is an arithmetic number, because the mean of its divisors is an integer number (3401484745).

Almost surely, 2^18847571041 is an apocalyptic number.

It is an amenable number.

18847571041 is a deficient number, since it is larger than the sum of its proper divisors (1561337429).

18847571041 is a wasteful number, since it uses less digits than its factorization.

18847571041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111524115 (or 111524102 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 46.

The spelling of 18847571041 in words is "eighteen billion, eight hundred forty-seven million, five hundred seventy-one thousand, forty-one".