2445050681389 has 2 divisors, whose sum is σ = 2445050681390. Its totient is φ = 2445050681388.

The previous prime is 2445050681387. The next prime is 2445050681399. The reversal of 2445050681389 is 9831860505442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2313958168900 + 131092512489 = 1521170^2 + 362067^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445050681389 - 2¹ = 2445050681387 is a prime.

Together with 2445050681387, 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 (2445050681387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222525340694 + 1222525340695.

It is an arithmetic number, because the mean of its divisors is an integer number (1222525340695).

Almost surely, 2^{2445050681389} is an apocalyptic number.

It is an amenable number.

2445050681389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445050681389 is an equidigital number, since it uses as much as digits as its factorization.

2445050681389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 2445050681389 in words is "two trillion, four hundred forty-five billion, fifty million, six hundred eighty-one thousand, three hundred eighty-nine".