44804371681 has 4 divisors (see below), whose sum is σ = 45344183472. Its totient is φ = 44264559892.

The previous prime is 44804371679. The next prime is 44804371687. The reversal of 44804371681 is 18617340844.

44804371681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44804371681 - 2¹ = 44804371679 is a prime.

It is a super-2 number, since 2×44804371681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44804371687) 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, 269905771 + ... + 269905936.

It is an arithmetic number, because the mean of its divisors is an integer number (11336045868).

Almost surely, 2^44804371681 is an apocalyptic number.

It is an amenable number.

44804371681 is a deficient number, since it is larger than the sum of its proper divisors (539811791).

44804371681 is an equidigital number, since it uses as much as digits as its factorization.

44804371681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539811790.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 44804371681 in words is "forty-four billion, eight hundred four million, three hundred seventy-one thousand, six hundred eighty-one".