4272643997 has 2 divisors, whose sum is σ = 4272643998. Its totient is φ = 4272643996.

The previous prime is 4272643957. The next prime is 4272644041. The reversal of 4272643997 is 7993462724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2922375481 + 1350268516 = 54059^2 + 36746^2 .

It is a cyclic number.

It is not a de Polignac number, because 4272643997 - 2¹² = 4272639901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4272643927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2136321998 + 2136321999.

It is an arithmetic number, because the mean of its divisors is an integer number (2136321999).

Almost surely, 2^4272643997 is an apocalyptic number.

It is an amenable number.

4272643997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4272643997 is an equidigital number, since it uses as much as digits as its factorization.

4272643997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 53.

The square root of 4272643997 is about 65365.4648648658. The cubic root of 4272643997 is about 1622.6775814552.

The spelling of 4272643997 in words is "four billion, two hundred seventy-two million, six hundred forty-three thousand, nine hundred ninety-seven".