6410449871 has 4 divisors (see below), whose sum is σ = 7326228432. Its totient is φ = 5494671312.

The previous prime is 6410449867. The next prime is 6410449873. The reversal of 6410449871 is 1789440146.

It is a happy number.

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 6410449871 - 2² = 6410449867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6410449873) 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, 457889270 + ... + 457889283.

It is an arithmetic number, because the mean of its divisors is an integer number (1831557108).

Almost surely, 2^6410449871 is an apocalyptic number.

6410449871 is a deficient number, since it is larger than the sum of its proper divisors (915778561).

6410449871 is an equidigital number, since it uses as much as digits as its factorization.

6410449871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915778560.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 6410449871 is about 80065.2850553846. The cubic root of 6410449871 is about 1857.6454840592.

The spelling of 6410449871 in words is "six billion, four hundred ten million, four hundred forty-nine thousand, eight hundred seventy-one".