6444143135 has 16 divisors (see below), whose sum is σ = 8117729280. Its totient is φ = 4904447520.

The previous prime is 6444143129. The next prime is 6444143141. The reversal of 6444143135 is 5313414446.

It is an interprime number because it is at equal distance from previous prime (6444143129) and next prime (6444143141).

It is not a de Polignac number, because 6444143135 - 2⁶ = 6444143071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6444143095 and 6444143104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343187 + ... + 361476.

It is an arithmetic number, because the mean of its divisors is an integer number (507358080).

Almost surely, 2^6444143135 is an apocalyptic number.

6444143135 is a deficient number, since it is larger than the sum of its proper divisors (1673586145).

6444143135 is a wasteful number, since it uses less digits than its factorization.

6444143135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704758.

The product of its digits is 69120, while the sum is 35.

The square root of 6444143135 is about 80275.4204909573. The cubic root of 6444143135 is about 1860.8943876632.

The spelling of 6444143135 in words is "six billion, four hundred forty-four million, one hundred forty-three thousand, one hundred thirty-five".