2448109621 has 2 divisors, whose sum is σ = 2448109622. Its totient is φ = 2448109620.

The previous prime is 2448109619. The next prime is 2448109661. The reversal of 2448109621 is 1269018442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2176222500 + 271887121 = 46650^2 + 16489^2 .

It is a cyclic number.

It is not a de Polignac number, because 2448109621 - 2¹ = 2448109619 is a prime.

Together with 2448109619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2448109661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224054810 + 1224054811.

It is an arithmetic number, because the mean of its divisors is an integer number (1224054811).

Almost surely, 2^2448109621 is an apocalyptic number.

It is an amenable number.

2448109621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2448109621 is an equidigital number, since it uses as much as digits as its factorization.

2448109621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2448109621 is about 49478.3752865835. The cubic root of 2448109621 is about 1347.7529369386.

The spelling of 2448109621 in words is "two billion, four hundred forty-eight million, one hundred nine thousand, six hundred twenty-one".