424789381680 has 80 divisors (see below), whose sum is σ = 1359326045184. Its totient is φ = 109623064320.

The previous prime is 424789381657. The next prime is 424789381721. The reversal of 424789381680 is 86183987424.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28540234 + ... + 28555113.

Almost surely, 2^424789381680 is an apocalyptic number.

424789381680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424789381680 is an abundant number, since it is smaller than the sum of its proper divisors (934536663504).

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

424789381680 is a wasteful number, since it uses less digits than its factorization.

424789381680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57095394 (or 57095388 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 60.

The spelling of 424789381680 in words is "four hundred twenty-four billion, seven hundred eighty-nine million, three hundred eighty-one thousand, six hundred eighty".