4426640684860 has 12 divisors (see below), whose sum is σ = 9295945438248. Its totient is φ = 1770656273936.

The previous prime is 4426640684827. The next prime is 4426640684881. The reversal of 4426640684860 is 684860466244.

It is a junction number, because it is equal to n+sod(n) for n = 4426640684795 and 4426640684804.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 110666017102 + ... + 110666017141.

It is an arithmetic number, because the mean of its divisors is an integer number (774662119854).

Almost surely, 2^{4426640684860} is an apocalyptic number.

It is an amenable number.

4426640684860 is an abundant number, since it is smaller than the sum of its proper divisors (4869304753388).

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

4426640684860 is a wasteful number, since it uses less digits than its factorization.

4426640684860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221332034252 (or 221332034250 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 58.

The spelling of 4426640684860 in words is "four trillion, four hundred twenty-six billion, six hundred forty million, six hundred eighty-four thousand, eight hundred sixty".