4444815559640 has 32 divisors (see below), whose sum is σ = 10006297126560. Its totient is φ = 1776955180800.

The previous prime is 4444815559633. The next prime is 4444815559643. The reversal of 4444815559640 is 469555184444.

It is a self number, because there is not a number n which added to its sum of digits gives 4444815559640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444815559643) 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, 30270941 + ... + 30417420.

It is an arithmetic number, because the mean of its divisors is an integer number (312696785205).

Almost surely, 2^{4444815559640} is an apocalyptic number.

4444815559640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444815559640 is an abundant number, since it is smaller than the sum of its proper divisors (5561481566920).

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

4444815559640 is a wasteful number, since it uses less digits than its factorization.

4444815559640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60690203 (or 60690199 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 59.

The spelling of 4444815559640 in words is "four trillion, four hundred forty-four billion, eight hundred fifteen million, five hundred fifty-nine thousand, six hundred forty".