3801618281 has 2 divisors, whose sum is σ = 3801618282. Its totient is φ = 3801618280.

The previous prime is 3801618263. The next prime is 3801618307. The reversal of 3801618281 is 1828161083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3799489600 + 2128681 = 61640^2 + 1459^2 .

It is a cyclic number.

It is not a de Polignac number, because 3801618281 - 2¹⁰ = 3801617257 is a prime.

It is a super-2 number, since 2×3801618281² = 28904603108866789922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3801618221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1900809140 + 1900809141.

It is an arithmetic number, because the mean of its divisors is an integer number (1900809141).

Almost surely, 2^3801618281 is an apocalyptic number.

It is an amenable number.

3801618281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3801618281 is an equidigital number, since it uses as much as digits as its factorization.

3801618281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 3801618281 is about 61657.2646246977. The cubic root of 3801618281 is about 1560.7122379130.

The spelling of 3801618281 in words is "three billion, eight hundred one million, six hundred eighteen thousand, two hundred eighty-one".