44289266750649 has 32 divisors (see below), whose sum is σ = 67432210151040. Its totient is φ = 28708930149696.

The previous prime is 44289266750647. The next prime is 44289266750653. The reversal of 44289266750649 is 94605766298244.

It is a happy number.

44289266750649 is a `hidden beast` number, since 4 + 4 + 28 + 92 + 6 + 6 + 7 + 506 + 4 + 9 = 666.

It is not a de Polignac number, because 44289266750649 - 2¹ = 44289266750647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44289266750647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13355647 + ... + 16338660.

It is an arithmetic number, because the mean of its divisors is an integer number (2107256567220).

Almost surely, 2^{44289266750649} is an apocalyptic number.

It is an amenable number.

44289266750649 is a deficient number, since it is larger than the sum of its proper divisors (23142943400391).

44289266750649 is a wasteful number, since it uses less digits than its factorization.

44289266750649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29695846 (or 29695840 counting only the distinct ones).

The product of its (nonzero) digits is 1254113280, while the sum is 72.

The spelling of 44289266750649 in words is "forty-four trillion, two hundred eighty-nine billion, two hundred sixty-six million, seven hundred fifty thousand, six hundred forty-nine".