44564077989 has 16 divisors (see below), whose sum is σ = 66156442240. Its totient is φ = 29648371680.

The previous prime is 44564077981. The next prime is 44564077997. The reversal of 44564077989 is 98977046544.

44564077989 is a `hidden beast` number, since 445 + 6 + 40 + 7 + 79 + 89 = 666.

44564077989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44564077981) and next prime (44564077997).

It is not a de Polignac number, because 44564077989 - 2³ = 44564077981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44564077981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681432 + ... + 1707729.

It is an arithmetic number, because the mean of its divisors is an integer number (4134777640).

Almost surely, 2^44564077989 is an apocalyptic number.

It is an amenable number.

44564077989 is a deficient number, since it is larger than the sum of its proper divisors (21592364251).

44564077989 is a wasteful number, since it uses less digits than its factorization.

44564077989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389657 (or 3389651 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 44564077989 in words is "forty-four billion, five hundred sixty-four million, seventy-seven thousand, nine hundred eighty-nine".