641738783424 has 56 divisors (see below), whose sum is σ = 1698079204800. Its totient is φ = 213894617344.

The previous prime is 641738783423. The next prime is 641738783431. The reversal of 641738783424 is 424387837146.

It is not an unprimeable number, because it can be changed into a prime (641738783423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2206027 + ... + 2479925.

Almost surely, 2^641738783424 is an apocalyptic number.

641738783424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

641738783424 is an abundant number, since it is smaller than the sum of its proper divisors (1056340421376).

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

641738783424 is a wasteful number, since it uses less digits than its factorization.

641738783424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286117 (or 286107 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 57.

The spelling of 641738783424 in words is "six hundred forty-one billion, seven hundred thirty-eight million, seven hundred eighty-three thousand, four hundred twenty-four".