44861643929 has 2 divisors, whose sum is σ = 44861643930. Its totient is φ = 44861643928.

The previous prime is 44861643913. The next prime is 44861643941. The reversal of 44861643929 is 92934616844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41994255625 + 2867388304 = 204925^2 + 53548^2 .

It is a cyclic number.

It is not a de Polignac number, because 44861643929 - 2⁴ = 44861643913 is a prime.

It is a super-3 number, since 3×44861643929³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (44861643979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22430821964 + 22430821965.

It is an arithmetic number, because the mean of its divisors is an integer number (22430821965).

Almost surely, 2^44861643929 is an apocalyptic number.

It is an amenable number.

44861643929 is a deficient number, since it is larger than the sum of its proper divisors (1).

44861643929 is an equidigital number, since it uses as much as digits as its factorization.

44861643929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 56.

The spelling of 44861643929 in words is "forty-four billion, eight hundred sixty-one million, six hundred forty-three thousand, nine hundred twenty-nine".