64808624842 has 16 divisors (see below), whose sum is σ = 104808920832. Its totient is φ = 29877940080.

The previous prime is 64808624821. The next prime is 64808624861. The reversal of 64808624842 is 24842680846.

It is a happy number.

64808624842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64808624842² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64808624842.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382034 + ... + 1428157.

It is an arithmetic number, because the mean of its divisors is an integer number (6550557552).

Almost surely, 2^64808624842 is an apocalyptic number.

64808624842 is a deficient number, since it is larger than the sum of its proper divisors (40000295990).

64808624842 is a wasteful number, since it uses less digits than its factorization.

64808624842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811093.

The product of its (nonzero) digits is 4718592, while the sum is 52.

The spelling of 64808624842 in words is "sixty-four billion, eight hundred eight million, six hundred twenty-four thousand, eight hundred forty-two".