42444400201 has 20 divisors (see below), whose sum is σ = 49557174272. Its totient is φ = 36350314056.

The previous prime is 42444400177. The next prime is 42444400211. The reversal of 42444400201 is 10200444424.

It is not a de Polignac number, because 42444400201 - 2⁹ = 42444399689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42444400211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3121720 + ... + 3135286.

Almost surely, 2^42444400201 is an apocalyptic number.

It is an amenable number.

42444400201 is a deficient number, since it is larger than the sum of its proper divisors (7112774071).

42444400201 is an equidigital number, since it uses as much as digits as its factorization.

42444400201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14898 (or 14877 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 42444400201 its reverse (10200444424), we get a palindrome (52644844625).

The spelling of 42444400201 in words is "forty-two billion, four hundred forty-four million, four hundred thousand, two hundred one".