44106772506021 has 12 divisors (see below), whose sum is σ = 64754205173580. Its totient is φ = 28922473774080.

The previous prime is 44106772506019. The next prime is 44106772506053. The reversal of 44106772506021 is 12060527760144.

44106772506021 is a `hidden beast` number, since 4 + 4 + 10 + 6 + 7 + 7 + 25 + 0 + 602 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5686436390625 + 38420336115396 = 2384625^2 + 6198414^2 .

It is not a de Polignac number, because 44106772506021 - 2¹ = 44106772506019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44106772506221) 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, 40170101916 + ... + 40170103013.

It is an arithmetic number, because the mean of its divisors is an integer number (5396183764465).

Almost surely, 2^{44106772506021} is an apocalyptic number.

It is an amenable number.

44106772506021 is a deficient number, since it is larger than the sum of its proper divisors (20647432667559).

44106772506021 is a wasteful number, since it uses less digits than its factorization.

44106772506021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80340204996 (or 80340204993 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 44106772506021 in words is "forty-four trillion, one hundred six billion, seven hundred seventy-two million, five hundred six thousand, twenty-one".