44861643979 has 2 divisors, whose sum is σ = 44861643980. Its totient is φ = 44861643978.

The previous prime is 44861643941. The next prime is 44861643997. The reversal of 44861643979 is 97934616844.

Together with next prime (44861643997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44861643979 - 2¹³ = 44861635787 is a prime.

It is not a weakly prime, because it can be changed into another prime (44861643929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22430821989 + 22430821990.

It is an arithmetic number, because the mean of its divisors is an integer number (22430821990).

Almost surely, 2^44861643979 is an apocalyptic number.

44861643979 is a deficient number, since it is larger than the sum of its proper divisors (1).

44861643979 is an equidigital number, since it uses as much as digits as its factorization.

44861643979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31352832, while the sum is 61.

The spelling of 44861643979 in words is "forty-four billion, eight hundred sixty-one million, six hundred forty-three thousand, nine hundred seventy-nine".