6449814143 has 4 divisors (see below), whose sum is σ = 6531457440. Its totient is φ = 6368170848.

The previous prime is 6449814131. The next prime is 6449814149. The reversal of 6449814143 is 3414189446.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6449814143 - 2⁶ = 6449814079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6449814094 and 6449814103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449814149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40821530 + ... + 40821687.

It is an arithmetic number, because the mean of its divisors is an integer number (1632864360).

Almost surely, 2^6449814143 is an apocalyptic number.

6449814143 is a deficient number, since it is larger than the sum of its proper divisors (81643297).

6449814143 is an equidigital number, since it uses as much as digits as its factorization.

6449814143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81643296.

The product of its digits is 331776, while the sum is 44.

The square root of 6449814143 is about 80310.7349175688. The cubic root of 6449814143 is about 1861.4401055641.

The spelling of 6449814143 in words is "six billion, four hundred forty-nine million, eight hundred fourteen thousand, one hundred forty-three".