44140344511 has 4 divisors (see below), whose sum is σ = 45564226624. Its totient is φ = 42716462400.

The previous prime is 44140344497. The next prime is 44140344617. The reversal of 44140344511 is 11544304144.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44140344511 - 2³¹ = 41992860863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1423882081 = 44140344511 / (4 + 4 + 1 + 4 + 0 + 3 + 4 + 4 + 5 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44140344011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711941010 + ... + 711941071.

It is an arithmetic number, because the mean of its divisors is an integer number (11391056656).

Almost surely, 2^44140344511 is an apocalyptic number.

44140344511 is a deficient number, since it is larger than the sum of its proper divisors (1423882113).

44140344511 is a wasteful number, since it uses less digits than its factorization.

44140344511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423882112.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 44140344511 its reverse (11544304144), we get a palindrome (55684648655).

The spelling of 44140344511 in words is "forty-four billion, one hundred forty million, three hundred forty-four thousand, five hundred eleven".