18802270483261 has 2 divisors, whose sum is σ = 18802270483262. Its totient is φ = 18802270483260.

The previous prime is 18802270483231. The next prime is 18802270483319. The reversal of 18802270483261 is 16238407220881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18191879857636 + 610390625625 = 4265194^2 + 781275^2 .

It is a cyclic number.

It is not a de Polignac number, because 18802270483261 - 2¹³ = 18802270475069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18802270483199 and 18802270483208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18802270483231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9401135241630 + 9401135241631.

It is an arithmetic number, because the mean of its divisors is an integer number (9401135241631).

Almost surely, 2^{18802270483261} is an apocalyptic number.

It is an amenable number.

18802270483261 is a deficient number, since it is larger than the sum of its proper divisors (1).

18802270483261 is an equidigital number, since it uses as much as digits as its factorization.

18802270483261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 18802270483261 in words is "eighteen trillion, eight hundred two billion, two hundred seventy million, four hundred eighty-three thousand, two hundred sixty-one".