424014836778 has 128 divisors (see below), whose sum is σ = 1076216117760. Its totient is φ = 122747581440.

The previous prime is 424014836747. The next prime is 424014836779. The reversal of 424014836778 is 877638410424.

424014836778 is a `hidden beast` number, since 424 + 0 + 14 + 83 + 67 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (424014836779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 769650 + ... + 1200162.

It is an arithmetic number, because the mean of its divisors is an integer number (8407938420).

Almost surely, 2^424014836778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424014836778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538108058880).

424014836778 is an abundant number, since it is smaller than the sum of its proper divisors (652201280982).

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

424014836778 is a wasteful number, since it uses less digits than its factorization.

424014836778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430621 (or 430615 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 424014836778 in words is "four hundred twenty-four billion, fourteen million, eight hundred thirty-six thousand, seven hundred seventy-eight".