44807723081 has 12 divisors (see below), whose sum is σ = 49267037316. Its totient is φ = 40721413920.

The previous prime is 44807723063. The next prime is 44807723101. The reversal of 44807723081 is 18032770844.

It can be written as a sum of positive squares in 2 ways, for example, as 30759547456 + 14048175625 = 175384^2 + 118525^2 .

It is not a de Polignac number, because 44807723081 - 2¹⁸ = 44807460937 is a prime.

It is a super-2 number, since 2×44807723081² (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 (44807723281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336695 + ... + 450531.

It is an arithmetic number, because the mean of its divisors is an integer number (4105586443).

Almost surely, 2^44807723081 is an apocalyptic number.

It is an amenable number.

44807723081 is a deficient number, since it is larger than the sum of its proper divisors (4459314235).

44807723081 is a wasteful number, since it uses less digits than its factorization.

44807723081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117112 (or 117101 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 44807723081 in words is "forty-four billion, eight hundred seven million, seven hundred twenty-three thousand, eighty-one".