2868764641 has 2 divisors, whose sum is σ = 2868764642. Its totient is φ = 2868764640.

The previous prime is 2868764599. The next prime is 2868764653. The reversal of 2868764641 is 1464678682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2735708416 + 133056225 = 52304^2 + 11535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2868764641 - 2⁷ = 2868764513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2868764141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434382320 + 1434382321.

It is an arithmetic number, because the mean of its divisors is an integer number (1434382321).

Almost surely, 2^2868764641 is an apocalyptic number.

It is an amenable number.

2868764641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868764641 is an equidigital number, since it uses as much as digits as its factorization.

2868764641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 52.

The square root of 2868764641 is about 53560.8498905684. The cubic root of 2868764641 is about 1420.9047730217.

The spelling of 2868764641 in words is "two billion, eight hundred sixty-eight million, seven hundred sixty-four thousand, six hundred forty-one".