4638888201864 has 64 divisors (see below), whose sum is σ = 13504041152640. Its totient is φ = 1300389143040.

The previous prime is 4638888201863. The next prime is 4638888201889. The reversal of 4638888201864 is 4681028888364.

It is a junction number, because it is equal to n+sod(n) for n = 4638888201795 and 4638888201804.

It is not an unprimeable number, because it can be changed into a prime (4638888201863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260485717 + ... + 260503524.

It is an arithmetic number, because the mean of its divisors is an integer number (211000643010).

Almost surely, 2^{4638888201864} is an apocalyptic number.

It is an amenable number.

4638888201864 is an abundant number, since it is smaller than the sum of its proper divisors (8865152950776).

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

4638888201864 is a wasteful number, since it uses less digits than its factorization.

4638888201864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520989310 (or 520989306 counting only the distinct ones).

The product of its (nonzero) digits is 113246208, while the sum is 66.

The spelling of 4638888201864 in words is "four trillion, six hundred thirty-eight billion, eight hundred eighty-eight million, two hundred one thousand, eight hundred sixty-four".