6448861412 has 24 divisors (see below), whose sum is σ = 12916645056. Its totient is φ = 2759743008.

The previous prime is 6448861381. The next prime is 6448861439. The reversal of 6448861412 is 2141688446.

It is a super-2 number, since 2×6448861412² = 83175627022365267488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149483 + ... + 187730.

It is an arithmetic number, because the mean of its divisors is an integer number (538193544).

Almost surely, 2^6448861412 is an apocalyptic number.

It is an amenable number.

6448861412 is an abundant number, since it is smaller than the sum of its proper divisors (6467783644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6448861412 is a wasteful number, since it uses less digits than its factorization.

6448861412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337907 (or 337905 counting only the distinct ones).

The product of its digits is 294912, while the sum is 44.

The square root of 6448861412 is about 80304.8031689263. The cubic root of 6448861412 is about 1861.3484471596.

The spelling of 6448861412 in words is "six billion, four hundred forty-eight million, eight hundred sixty-one thousand, four hundred twelve".