4442158221457 has 24 divisors (see below), whose sum is σ = 4921802375168. Its totient is φ = 4005996160320.

The previous prime is 4442158221427. The next prime is 4442158221533. The reversal of 4442158221457 is 7541228512444.

It is a de Polignac number, because none of the positive numbers 2^k-4442158221457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4442158221457.

It is not an unprimeable number, because it can be changed into a prime (4442158221427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158312173 + ... + 158340229.

Almost surely, 2^{4442158221457} is an apocalyptic number.

It is an amenable number.

4442158221457 is a deficient number, since it is larger than the sum of its proper divisors (479644153711).

4442158221457 is a wasteful number, since it uses less digits than its factorization.

4442158221457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38509 (or 38498 counting only the distinct ones).

The product of its digits is 2867200, while the sum is 49.

The spelling of 4442158221457 in words is "four trillion, four hundred forty-two billion, one hundred fifty-eight million, two hundred twenty-one thousand, four hundred fifty-seven".