4278772204559 has 2 divisors, whose sum is σ = 4278772204560. Its totient is φ = 4278772204558.

The previous prime is 4278772204541. The next prime is 4278772204667. The reversal of 4278772204559 is 9554022778724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4278772204559 - 2¹² = 4278772200463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4278772204519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139386102279 + 2139386102280.

It is an arithmetic number, because the mean of its divisors is an integer number (2139386102280).

Almost surely, 2^{4278772204559} is an apocalyptic number.

4278772204559 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278772204559 is an equidigital number, since it uses as much as digits as its factorization.

4278772204559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79027200, while the sum is 62.

The spelling of 4278772204559 in words is "four trillion, two hundred seventy-eight billion, seven hundred seventy-two million, two hundred four thousand, five hundred fifty-nine".