4272478789 has 2 divisors, whose sum is σ = 4272478790. Its totient is φ = 4272478788.

The previous prime is 4272478787. The next prime is 4272478801. The reversal of 4272478789 is 9878742724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3006328900 + 1266149889 = 54830^2 + 35583^2 .

It is a cyclic number.

It is not a de Polignac number, because 4272478789 - 2¹ = 4272478787 is a prime.

Together with 4272478787, 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 (4272478787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2136239394 + 2136239395.

It is an arithmetic number, because the mean of its divisors is an integer number (2136239395).

Almost surely, 2^4272478789 is an apocalyptic number.

It is an amenable number.

4272478789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4272478789 is an equidigital number, since it uses as much as digits as its factorization.

4272478789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12644352, while the sum is 58.

The square root of 4272478789 is about 65364.2011272225. The cubic root of 4272478789 is about 1622.6566667887.

The spelling of 4272478789 in words is "four billion, two hundred seventy-two million, four hundred seventy-eight thousand, seven hundred eighty-nine".