4273678321 has 16 divisors (see below), whose sum is σ = 4816171008. Its totient is φ = 3757035600.

The previous prime is 4273678319. The next prime is 4273678327. The reversal of 4273678321 is 1238763724.

It is a cyclic number.

It is not a de Polignac number, because 4273678321 - 2¹ = 4273678319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4273678327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550956 + ... + 558658.

It is an arithmetic number, because the mean of its divisors is an integer number (301010688).

Almost surely, 2^4273678321 is an apocalyptic number.

It is an amenable number.

4273678321 is a deficient number, since it is larger than the sum of its proper divisors (542492687).

4273678321 is a wasteful number, since it uses less digits than its factorization.

4273678321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9372.

The product of its digits is 338688, while the sum is 43.

The square root of 4273678321 is about 65373.3762398731. The cubic root of 4273678321 is about 1622.8085104500.

The spelling of 4273678321 in words is "four billion, two hundred seventy-three million, six hundred seventy-eight thousand, three hundred twenty-one".