44531011421 has 24 divisors (see below), whose sum is σ = 48717434304. Its totient is φ = 40683651840.

The previous prime is 44531011391. The next prime is 44531011433. The reversal of 44531011421 is 12411013544.

It is not a de Polignac number, because 44531011421 - 2²² = 44526817117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44531011621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6798470 + ... + 6805016.

It is an arithmetic number, because the mean of its divisors is an integer number (2029893096).

Almost surely, 2^44531011421 is an apocalyptic number.

It is an amenable number.

44531011421 is a deficient number, since it is larger than the sum of its proper divisors (4186422883).

44531011421 is a wasteful number, since it uses less digits than its factorization.

44531011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981 (or 6968 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 44531011421 its reverse (12411013544), we get a palindrome (56942024965).

The spelling of 44531011421 in words is "forty-four billion, five hundred thirty-one million, eleven thousand, four hundred twenty-one".