642281300224 has 36 divisors (see below), whose sum is σ = 1286176207680. Its totient is φ = 320108003840.

The previous prime is 642281300179. The next prime is 642281300261. The reversal of 642281300224 is 422003182246.

It is a self number, because there is not a number n which added to its sum of digits gives 642281300224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3954004 + ... + 4113235.

It is an arithmetic number, because the mean of its divisors is an integer number (35727116880).

Almost surely, 2^642281300224 is an apocalyptic number.

642281300224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

642281300224 is an abundant number, since it is smaller than the sum of its proper divisors (643894907456).

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

642281300224 is an equidigital number, since it uses as much as digits as its factorization.

642281300224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8067566 (or 8067552 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 642281300224 in words is "six hundred forty-two billion, two hundred eighty-one million, three hundred thousand, two hundred twenty-four".