44015797457 has 2 divisors, whose sum is σ = 44015797458. Its totient is φ = 44015797456.

The previous prime is 44015797453. The next prime is 44015797577. The reversal of 44015797457 is 75479751044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42452069521 + 1563727936 = 206039^2 + 39544^2 .

It is a cyclic number.

It is not a de Polignac number, because 44015797457 - 2² = 44015797453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44015797399 and 44015797408.

It is not a weakly prime, because it can be changed into another prime (44015797453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22007898728 + 22007898729.

It is an arithmetic number, because the mean of its divisors is an integer number (22007898729).

Almost surely, 2^44015797457 is an apocalyptic number.

It is an amenable number.

44015797457 is a deficient number, since it is larger than the sum of its proper divisors (1).

44015797457 is an equidigital number, since it uses as much as digits as its factorization.

44015797457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 44015797457 in words is "forty-four billion, fifteen million, seven hundred ninety-seven thousand, four hundred fifty-seven".