44921873497 has 2 divisors, whose sum is σ = 44921873498. Its totient is φ = 44921873496.

The previous prime is 44921873461. The next prime is 44921873537. The reversal of 44921873497 is 79437812944.

It is a happy number.

44921873497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42695543641 + 2226329856 = 206629^2 + 47184^2 .

It is a cyclic number.

It is not a de Polignac number, because 44921873497 - 2⁷ = 44921873369 is a prime.

It is not a weakly prime, because it can be changed into another prime (44921873407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22460936748 + 22460936749.

It is an arithmetic number, because the mean of its divisors is an integer number (22460936749).

Almost surely, 2^44921873497 is an apocalyptic number.

It is an amenable number.

44921873497 is a deficient number, since it is larger than the sum of its proper divisors (1).

44921873497 is an equidigital number, since it uses as much as digits as its factorization.

44921873497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 58.

The spelling of 44921873497 in words is "forty-four billion, nine hundred twenty-one million, eight hundred seventy-three thousand, four hundred ninety-seven".