37443044421 has 16 divisors (see below), whose sum is σ = 55980091200. Its totient is φ = 24733018224.

The previous prime is 37443044417. The next prime is 37443044437. The reversal of 37443044421 is 12444034473.

It is not a de Polignac number, because 37443044421 - 2² = 37443044417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37443044491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6358431 + ... + 6364316.

It is an arithmetic number, because the mean of its divisors is an integer number (3498755700).

Almost surely, 2^37443044421 is an apocalyptic number.

It is an amenable number.

37443044421 is a deficient number, since it is larger than the sum of its proper divisors (18537046779).

37443044421 is a wasteful number, since it uses less digits than its factorization.

37443044421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12722865 (or 12722859 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 36.

Adding to 37443044421 its reverse (12444034473), we get a palindrome (49887078894).

The spelling of 37443044421 in words is "thirty-seven billion, four hundred forty-three million, forty-four thousand, four hundred twenty-one".