2946568381 has 2 divisors, whose sum is σ = 2946568382. Its totient is φ = 2946568380.

The previous prime is 2946568379. The next prime is 2946568397. The reversal of 2946568381 is 1838656492.

2946568381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2319867225 + 626701156 = 48165^2 + 25034^2 .

It is a cyclic number.

It is not a de Polignac number, because 2946568381 - 2¹ = 2946568379 is a prime.

It is a super-2 number, since 2×2946568381² = 17364530447817922322, which contains 22 as substring.

Together with 2946568379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2946568481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473284190 + 1473284191.

It is an arithmetic number, because the mean of its divisors is an integer number (1473284191).

Almost surely, 2^2946568381 is an apocalyptic number.

It is an amenable number.

2946568381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2946568381 is an equidigital number, since it uses as much as digits as its factorization.

2946568381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 52.

The square root of 2946568381 is about 54282.3026501271. The cubic root of 2946568381 is about 1433.6358131350.

The spelling of 2946568381 in words is "two billion, nine hundred forty-six million, five hundred sixty-eight thousand, three hundred eighty-one".