44542410421 has 2 divisors, whose sum is σ = 44542410422. Its totient is φ = 44542410420.

The previous prime is 44542410359. The next prime is 44542410449. The reversal of 44542410421 is 12401424544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40092052900 + 4450357521 = 200230^2 + 66711^2 .

It is a cyclic number.

It is not a de Polignac number, because 44542410421 - 2⁹ = 44542409909 is a prime.

It is a super-2 number, since 2×44542410421² (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 (44542414421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22271205210 + 22271205211.

It is an arithmetic number, because the mean of its divisors is an integer number (22271205211).

Almost surely, 2^44542410421 is an apocalyptic number.

It is an amenable number.

44542410421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44542410421 is an equidigital number, since it uses as much as digits as its factorization.

44542410421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 44542410421 its reverse (12401424544), we get a palindrome (56943834965).

The spelling of 44542410421 in words is "forty-four billion, five hundred forty-two million, four hundred ten thousand, four hundred twenty-one".