44461872857 has 2 divisors, whose sum is σ = 44461872858. Its totient is φ = 44461872856.

The previous prime is 44461872827. The next prime is 44461872883. The reversal of 44461872857 is 75827816444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44095380121 + 366492736 = 209989^2 + 19144^2 .

It is a cyclic number.

It is not a de Polignac number, because 44461872857 - 2²⁸ = 44193437401 is a prime.

It is not a weakly prime, because it can be changed into another prime (44461872817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22230936428 + 22230936429.

It is an arithmetic number, because the mean of its divisors is an integer number (22230936429).

Almost surely, 2^44461872857 is an apocalyptic number.

It is an amenable number.

44461872857 is a deficient number, since it is larger than the sum of its proper divisors (1).

44461872857 is an equidigital number, since it uses as much as digits as its factorization.

44461872857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12042240, while the sum is 56.

The spelling of 44461872857 in words is "forty-four billion, four hundred sixty-one million, eight hundred seventy-two thousand, eight hundred fifty-seven".