4221854888615 has 64 divisors (see below), whose sum is σ = 6249006704640. Its totient is φ = 2666449497600.

The previous prime is 4221854888609. The next prime is 4221854888627. The reversal of 4221854888615 is 5168884581224.

It is not a de Polignac number, because 4221854888615 - 2¹⁴ = 4221854872231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 686365790 + ... + 686371940.

It is an arithmetic number, because the mean of its divisors is an integer number (97640729760).

Almost surely, 2^{4221854888615} is an apocalyptic number.

4221854888615 is a deficient number, since it is larger than the sum of its proper divisors (2027151816025).

4221854888615 is a wasteful number, since it uses less digits than its factorization.

4221854888615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232.

The product of its digits is 39321600, while the sum is 62.

The spelling of 4221854888615 in words is "four trillion, two hundred twenty-one billion, eight hundred fifty-four million, eight hundred eighty-eight thousand, six hundred fifteen".