44220720687 has 16 divisors (see below), whose sum is σ = 69268821888. Its totient is φ = 24738864480.

The previous prime is 44220720653. The next prime is 44220720689. The reversal of 44220720687 is 78602702244.

44220720687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44220720687 - 2⁶ = 44220720623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44220720689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51538873 + ... + 51539730.

It is an arithmetic number, because the mean of its divisors is an integer number (4329301368).

Almost surely, 2^44220720687 is an apocalyptic number.

44220720687 is a deficient number, since it is larger than the sum of its proper divisors (25048101201).

44220720687 is a wasteful number, since it uses less digits than its factorization.

44220720687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103078630.

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 44220720687 in words is "forty-four billion, two hundred twenty million, seven hundred twenty thousand, six hundred eighty-seven".