4263432921 has 32 divisors (see below), whose sum is σ = 6987479040. Its totient is φ = 2547493200.

The previous prime is 4263432893. The next prime is 4263432937. The reversal of 4263432921 is 1292343624.

4263432921 is a `hidden beast` number, since 4 + 26 + 343 + 292 + 1 = 666.

It is not a de Polignac number, because 4263432921 - 2⁵ = 4263432889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4263430921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80005 + ... + 122178.

It is an arithmetic number, because the mean of its divisors is an integer number (218358720).

Almost surely, 2^4263432921 is an apocalyptic number.

It is an amenable number.

4263432921 is a deficient number, since it is larger than the sum of its proper divisors (2724046119).

4263432921 is a wasteful number, since it uses less digits than its factorization.

4263432921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202274 (or 202268 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 4263432921 is about 65294.9685733901. The cubic root of 4263432921 is about 1621.5106724578.

The spelling of 4263432921 in words is "four billion, two hundred sixty-three million, four hundred thirty-two thousand, nine hundred twenty-one".