4354489471638 has 64 divisors (see below), whose sum is σ = 9189257932800. Its totient is φ = 1371818488320.

The previous prime is 4354489471637. The next prime is 4354489471747. The reversal of 4354489471638 is 8361749844534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4354489471637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99420648 + ... + 99464436.

It is an arithmetic number, because the mean of its divisors is an integer number (143582155200).

Almost surely, 2^{4354489471638} is an apocalyptic number.

4354489471638 is an abundant number, since it is smaller than the sum of its proper divisors (4834768461162).

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

4354489471638 is a wasteful number, since it uses less digits than its factorization.

4354489471638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45877.

The product of its digits is 278691840, while the sum is 66.

The spelling of 4354489471638 in words is "four trillion, three hundred fifty-four billion, four hundred eighty-nine million, four hundred seventy-one thousand, six hundred thirty-eight".