4278802813 has 2 divisors, whose sum is σ = 4278802814. Its totient is φ = 4278802812.

The previous prime is 4278802757. The next prime is 4278802817. The reversal of 4278802813 is 3182088724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2505803364 + 1772999449 = 50058^2 + 42107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4278802813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4278802813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278802817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139401406 + 2139401407.

It is an arithmetic number, because the mean of its divisors is an integer number (2139401407).

Almost surely, 2^4278802813 is an apocalyptic number.

It is an amenable number.

4278802813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278802813 is an equidigital number, since it uses as much as digits as its factorization.

4278802813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 4278802813 is about 65412.5585266316. The cubic root of 4278802813 is about 1623.4568783534.

The spelling of 4278802813 in words is "four billion, two hundred seventy-eight million, eight hundred two thousand, eight hundred thirteen".