44863393139 has 2 divisors, whose sum is σ = 44863393140. Its totient is φ = 44863393138.

The previous prime is 44863393073. The next prime is 44863393177. The reversal of 44863393139 is 93139336844.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44863393139 is a prime.

It is not a weakly prime, because it can be changed into another prime (44833393139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22431696569 + 22431696570.

It is an arithmetic number, because the mean of its divisors is an integer number (22431696570).

Almost surely, 2^44863393139 is an apocalyptic number.

44863393139 is a deficient number, since it is larger than the sum of its proper divisors (1).

44863393139 is an equidigital number, since it uses as much as digits as its factorization.

44863393139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 53.

The spelling of 44863393139 in words is "forty-four billion, eight hundred sixty-three million, three hundred ninety-three thousand, one hundred thirty-nine".