6446919360 has 112 divisors (see below), whose sum is σ = 23393131776. Its totient is φ = 1473580032.

The previous prime is 6446919337. The next prime is 6446919361. The reversal of 6446919360 is 639196446.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (6446919361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472962 + ... + 486401.

It is an arithmetic number, because the mean of its divisors is an integer number (208867248).

Almost surely, 2^6446919360 is an apocalyptic number.

6446919360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6446919360 is an abundant number, since it is smaller than the sum of its proper divisors (16946212416).

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

6446919360 is a wasteful number, since it uses less digits than its factorization.

6446919360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959390 (or 959380 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 6446919360 is about 80292.7105035071. The cubic root of 6446919360 is about 1861.1615822145.

The spelling of 6446919360 in words is "six billion, four hundred forty-six million, nine hundred nineteen thousand, three hundred sixty".