4518629421 has 8 divisors (see below), whose sum is σ = 6025186080. Its totient is φ = 3012246192.

The previous prime is 4518629411. The next prime is 4518629431. The reversal of 4518629421 is 1249268154.

It is an interprime number because it is at equal distance from previous prime (4518629411) and next prime (4518629431).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4518629421 - 2⁹ = 4518628909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518629411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40746 + ... + 103428.

It is an arithmetic number, because the mean of its divisors is an integer number (753148260).

Almost surely, 2^4518629421 is an apocalyptic number.

It is an amenable number.

4518629421 is a deficient number, since it is larger than the sum of its proper divisors (1506556659).

4518629421 is a wasteful number, since it uses less digits than its factorization.

4518629421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86715.

The product of its digits is 138240, while the sum is 42.

The square root of 4518629421 is about 67220.7514165083. The cubic root of 4518629421 is about 1653.2387467522.

The spelling of 4518629421 in words is "four billion, five hundred eighteen million, six hundred twenty-nine thousand, four hundred twenty-one".