44994813139 has 2 divisors, whose sum is σ = 44994813140. Its totient is φ = 44994813138.

The previous prime is 44994813113. The next prime is 44994813151. The reversal of 44994813139 is 93131849944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44994813139 - 2¹¹ = 44994811091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44994813139.

It is not a weakly prime, because it can be changed into another prime (44994813169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22497406569 + 22497406570.

It is an arithmetic number, because the mean of its divisors is an integer number (22497406570).

Almost surely, 2^44994813139 is an apocalyptic number.

44994813139 is a deficient number, since it is larger than the sum of its proper divisors (1).

44994813139 is an equidigital number, since it uses as much as digits as its factorization.

44994813139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 55.

The spelling of 44994813139 in words is "forty-four billion, nine hundred ninety-four million, eight hundred thirteen thousand, one hundred thirty-nine".