6446012287 has 8 divisors (see below), whose sum is σ = 7572937680. Its totient is φ = 5409240960.

The previous prime is 6446012263. The next prime is 6446012291. The reversal of 6446012287 is 7822106446.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6446012287 - 2⁷ = 6446012159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446012227) 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, 22538362 + ... + 22538647.

It is an arithmetic number, because the mean of its divisors is an integer number (946617210).

Almost surely, 2^6446012287 is an apocalyptic number.

6446012287 is a deficient number, since it is larger than the sum of its proper divisors (1126925393).

6446012287 is a wasteful number, since it uses less digits than its factorization.

6446012287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45077033.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 6446012287 is about 80287.0617658910. The cubic root of 6446012287 is about 1861.0742904654.

The spelling of 6446012287 in words is "six billion, four hundred forty-six million, twelve thousand, two hundred eighty-seven".