4408919664 has 40 divisors (see below), whose sum is σ = 11395318272. Its totient is φ = 1468916160.

The previous prime is 4408919663. The next prime is 4408919693. The reversal of 4408919664 is 4669198044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4408919663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80737 + ... + 123839.

Almost surely, 2^4408919664 is an apocalyptic number.

It is an amenable number.

4408919664 is an abundant number, since it is smaller than the sum of its proper divisors (6986398608).

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

4408919664 is a wasteful number, since it uses less digits than its factorization.

4408919664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45245 (or 45239 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 4408919664 is about 66399.6962643655. The cubic root of 4408919664 is about 1639.7490772161.

It can be divided in two parts, 440891 and 9664, that multiplied together give a palindrome (4260770624).

The spelling of 4408919664 in words is "four billion, four hundred eight million, nine hundred nineteen thousand, six hundred sixty-four".