44681349157 has 2 divisors, whose sum is σ = 44681349158. Its totient is φ = 44681349156.

The previous prime is 44681349143. The next prime is 44681349199. The reversal of 44681349157 is 75194318644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34326455076 + 10354894081 = 185274^2 + 101759^2 .

It is a cyclic number.

It is not a de Polignac number, because 44681349157 - 2⁷ = 44681349029 is a prime.

It is a super-2 number, since 2×44681349157² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44681349127) 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, 22340674578 + 22340674579.

It is an arithmetic number, because the mean of its divisors is an integer number (22340674579).

Almost surely, 2^44681349157 is an apocalyptic number.

It is an amenable number.

44681349157 is a deficient number, since it is larger than the sum of its proper divisors (1).

44681349157 is an equidigital number, since it uses as much as digits as its factorization.

44681349157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 52.

The spelling of 44681349157 in words is "forty-four billion, six hundred eighty-one million, three hundred forty-nine thousand, one hundred fifty-seven".