486443221920 has 72 divisors (see below), whose sum is σ = 1659987499716. Its totient is φ = 129718192128.

The previous prime is 486443221909. The next prime is 486443221933. The reversal of 486443221920 is 29122344684.

It can be written as a sum of positive squares in 2 ways, for example, as 470996709264 + 15446512656 = 686292^2 + 124284^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168902457 + ... + 168905336.

Almost surely, 2^486443221920 is an apocalyptic number.

486443221920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

486443221920 is an abundant number, since it is smaller than the sum of its proper divisors (1173544277796).

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

486443221920 is a wasteful number, since it uses less digits than its factorization.

486443221920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337807814 (or 337807803 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 486443221920 in words is "four hundred eighty-six billion, four hundred forty-three million, two hundred twenty-one thousand, nine hundred twenty".