44875347821 has 2 divisors, whose sum is σ = 44875347822. Its totient is φ = 44875347820.

The previous prime is 44875347791. The next prime is 44875347827. The reversal of 44875347821 is 12874357844.

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., 44347726921 + 527620900 = 210589^2 + 22970^2 .

It is a cyclic number.

It is not a de Polignac number, because 44875347821 - 2³⁴ = 27695478637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44875347827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22437673910 + 22437673911.

It is an arithmetic number, because the mean of its divisors is an integer number (22437673911).

Almost surely, 2^44875347821 is an apocalyptic number.

It is an amenable number.

44875347821 is a deficient number, since it is larger than the sum of its proper divisors (1).

44875347821 is an equidigital number, since it uses as much as digits as its factorization.

44875347821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6021120, while the sum is 53.

The spelling of 44875347821 in words is "forty-four billion, eight hundred seventy-five million, three hundred forty-seven thousand, eight hundred twenty-one".