18251202841 has 2 divisors, whose sum is σ = 18251202842. Its totient is φ = 18251202840.

The previous prime is 18251202733. The next prime is 18251202859. The reversal of 18251202841 is 14820215281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15536376025 + 2714826816 = 124645^2 + 52104^2 .

It is a cyclic number.

It is not a de Polignac number, because 18251202841 - 2¹⁹ = 18250678553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18251202797 and 18251202806.

It is not a weakly prime, because it can be changed into another prime (18251202241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9125601420 + 9125601421.

It is an arithmetic number, because the mean of its divisors is an integer number (9125601421).

Almost surely, 2^18251202841 is an apocalyptic number.

It is an amenable number.

18251202841 is a deficient number, since it is larger than the sum of its proper divisors (1).

18251202841 is an equidigital number, since it uses as much as digits as its factorization.

18251202841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 34.

The spelling of 18251202841 in words is "eighteen billion, two hundred fifty-one million, two hundred two thousand, eight hundred forty-one".