5040767821 has 2 divisors, whose sum is σ = 5040767822. Its totient is φ = 5040767820.

The previous prime is 5040767819. The next prime is 5040767839. The reversal of 5040767821 is 1287670405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5039012196 + 1755625 = 70986^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 5040767821 - 2¹ = 5040767819 is a prime.

Together with 5040767819, 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 (5040767861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2520383910 + 2520383911.

It is an arithmetic number, because the mean of its divisors is an integer number (2520383911).

Almost surely, 2^5040767821 is an apocalyptic number.

It is an amenable number.

5040767821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5040767821 is an equidigital number, since it uses as much as digits as its factorization.

5040767821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 5040767821 is about 70998.3649177923. The cubic root of 5040767821 is about 1714.6108386660.

The spelling of 5040767821 in words is "five billion, forty million, seven hundred sixty-seven thousand, eight hundred twenty-one".