44027697551 has 2 divisors, whose sum is σ = 44027697552. Its totient is φ = 44027697550.

The previous prime is 44027697529. The next prime is 44027697643. The reversal of 44027697551 is 15579672044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44027697551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44027697551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44027697451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22013848775 + 22013848776.

It is an arithmetic number, because the mean of its divisors is an integer number (22013848776).

Almost surely, 2^44027697551 is an apocalyptic number.

44027697551 is a deficient number, since it is larger than the sum of its proper divisors (1).

44027697551 is an equidigital number, since it uses as much as digits as its factorization.

44027697551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 44027697551 in words is "forty-four billion, twenty-seven million, six hundred ninety-seven thousand, five hundred fifty-one".