6402764243 has 2 divisors, whose sum is σ = 6402764244. Its totient is φ = 6402764242.

The previous prime is 6402764237. The next prime is 6402764279. The reversal of 6402764243 is 3424672046.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6402764243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6402764197 and 6402764206.

It is not a weakly prime, because it can be changed into another prime (6402764293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201382121 + 3201382122.

It is an arithmetic number, because the mean of its divisors is an integer number (3201382122).

Almost surely, 2^6402764243 is an apocalyptic number.

6402764243 is a deficient number, since it is larger than the sum of its proper divisors (1).

6402764243 is an equidigital number, since it uses as much as digits as its factorization.

6402764243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 38.

The square root of 6402764243 is about 80017.2746536646. The cubic root of 6402764243 is about 1856.9027966257.

The spelling of 6402764243 in words is "six billion, four hundred two million, seven hundred sixty-four thousand, two hundred forty-three".