44140362457 has 2 divisors, whose sum is σ = 44140362458. Its totient is φ = 44140362456.

The previous prime is 44140362397. The next prime is 44140362463. The reversal of 44140362457 is 75426304144.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43933836816 + 206525641 = 209604^2 + 14371^2 .

It is a cyclic number.

It is not a de Polignac number, because 44140362457 - 2¹⁵ = 44140329689 is a prime.

It is not a weakly prime, because it can be changed into another prime (44140362757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22070181228 + 22070181229.

It is an arithmetic number, because the mean of its divisors is an integer number (22070181229).

Almost surely, 2^44140362457 is an apocalyptic number.

It is an amenable number.

44140362457 is a deficient number, since it is larger than the sum of its proper divisors (1).

44140362457 is an equidigital number, since it uses as much as digits as its factorization.

44140362457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 44140362457 in words is "forty-four billion, one hundred forty million, three hundred sixty-two thousand, four hundred fifty-seven".