2821463081 has 2 divisors, whose sum is σ = 2821463082. Its totient is φ = 2821463080.

The previous prime is 2821463033. The next prime is 2821463087. The reversal of 2821463081 is 1803641282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1420083856 + 1401379225 = 37684^2 + 37435^2 .

It is a cyclic number.

It is not a de Polignac number, because 2821463081 - 2²⁶ = 2754354217 is a prime.

It is a super-2 number, since 2×2821463081² = 15921307834892025122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2821463087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410731540 + 1410731541.

It is an arithmetic number, because the mean of its divisors is an integer number (1410731541).

Almost surely, 2^2821463081 is an apocalyptic number.

It is an amenable number.

2821463081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2821463081 is an equidigital number, since it uses as much as digits as its factorization.

2821463081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 2821463081 is about 53117.4461076585. The cubic root of 2821463081 is about 1413.0519345214.

The spelling of 2821463081 in words is "two billion, eight hundred twenty-one million, four hundred sixty-three thousand, eighty-one".