44840566649 has 2 divisors, whose sum is σ = 44840566650. Its totient is φ = 44840566648.

The previous prime is 44840566643. The next prime is 44840566669. The reversal of 44840566649 is 94666504844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26114560000 + 18726006649 = 161600^2 + 136843^2 .

It is a cyclic number.

It is not a de Polignac number, because 44840566649 - 2²⁴ = 44823789433 is a prime.

It is a super-2 number, since 2×44840566649² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44840566594 and 44840566603.

It is not a weakly prime, because it can be changed into another prime (44840566643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22420283324 + 22420283325.

It is an arithmetic number, because the mean of its divisors is an integer number (22420283325).

Almost surely, 2^44840566649 is an apocalyptic number.

It is an amenable number.

44840566649 is a deficient number, since it is larger than the sum of its proper divisors (1).

44840566649 is an equidigital number, since it uses as much as digits as its factorization.

44840566649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 56.

The spelling of 44840566649 in words is "forty-four billion, eight hundred forty million, five hundred sixty-six thousand, six hundred forty-nine".