18241240471 has 2 divisors, whose sum is σ = 18241240472. Its totient is φ = 18241240470.

The previous prime is 18241240421. The next prime is 18241240477. The reversal of 18241240471 is 17404214281.

It is a strong prime.

It is an emirp because it is prime and its reverse (17404214281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18241240471 - 2¹³ = 18241232279 is a prime.

It is a super-3 number, since 3×18241240471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18241240477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9120620235 + 9120620236.

It is an arithmetic number, because the mean of its divisors is an integer number (9120620236).

Almost surely, 2^18241240471 is an apocalyptic number.

18241240471 is a deficient number, since it is larger than the sum of its proper divisors (1).

18241240471 is an equidigital number, since it uses as much as digits as its factorization.

18241240471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 18241240471 in words is "eighteen billion, two hundred forty-one million, two hundred forty thousand, four hundred seventy-one".