4267147921 has 2 divisors, whose sum is σ = 4267147922. Its totient is φ = 4267147920.

The previous prime is 4267147901. The next prime is 4267147931. The reversal of 4267147921 is 1297417624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4262653521 + 4494400 = 65289^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 4267147921 - 2¹¹ = 4267145873 is a prime.

It is not a weakly prime, because it can be changed into another prime (4267147901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2133573960 + 2133573961.

It is an arithmetic number, because the mean of its divisors is an integer number (2133573961).

Almost surely, 2^4267147921 is an apocalyptic number.

It is an amenable number.

4267147921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4267147921 is an equidigital number, since it uses as much as digits as its factorization.

4267147921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 4267147921 is about 65323.4102064490. The cubic root of 4267147921 is about 1621.9815108200.

The spelling of 4267147921 in words is "four billion, two hundred sixty-seven million, one hundred forty-seven thousand, nine hundred twenty-one".