4872444218505 has 72 divisors (see below), whose sum is σ = 8629582977288. Its totient is φ = 2543020526592.

The previous prime is 4872444218501. The next prime is 4872444218573. The reversal of 4872444218505 is 5058124442784.

4872444218505 is a `hidden beast` number, since 4 + 8 + 72 + 4 + 44 + 21 + 8 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 43596187209 + 4828848031296 = 208797^2 + 2197464^2 .

It is not a de Polignac number, because 4872444218505 - 2² = 4872444218501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4872444218501) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31658719 + ... + 31812251.

It is an arithmetic number, because the mean of its divisors is an integer number (119855319129).

Almost surely, 2^{4872444218505} is an apocalyptic number.

4872444218505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4872444218505 is a deficient number, since it is larger than the sum of its proper divisors (3757138758783).

4872444218505 is a wasteful number, since it uses less digits than its factorization.

4872444218505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153815 (or 153733 counting only the distinct ones).

The product of its (nonzero) digits is 11468800, while the sum is 54.

The spelling of 4872444218505 in words is "four trillion, eight hundred seventy-two billion, four hundred forty-four million, two hundred eighteen thousand, five hundred five".