1304386645818 has 8 divisors (see below), whose sum is σ = 2608773291648. Its totient is φ = 434795548604.

The previous prime is 1304386645811. The next prime is 1304386645819. The reversal of 1304386645818 is 8185466834031.

It is a sphenic number, since it is the product of 3 distinct primes.

1304386645818 is an admirable number.

It is a super-3 number, since 3×1304386645818³ (a number of 37 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1304386645811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108698887146 + ... + 108698887157.

It is an arithmetic number, because the mean of its divisors is an integer number (326096661456).

Almost surely, 2^{1304386645818} is an apocalyptic number.

1304386645818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1304386645818 is a wasteful number, since it uses less digits than its factorization.

1304386645818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217397774308.

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 1304386645818 in words is "one trillion, three hundred four billion, three hundred eighty-six million, six hundred forty-five thousand, eight hundred eighteen".