2485901389 has 2 divisors, whose sum is σ = 2485901390. Its totient is φ = 2485901388.

The previous prime is 2485901357. The next prime is 2485901417. The reversal of 2485901389 is 9831095842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2485820164 + 81225 = 49858^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2485901389 - 2⁵ = 2485901357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2485901329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1242950694 + 1242950695.

It is an arithmetic number, because the mean of its divisors is an integer number (1242950695).

Almost surely, 2^2485901389 is an apocalyptic number.

It is an amenable number.

2485901389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2485901389 is an equidigital number, since it uses as much as digits as its factorization.

2485901389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 2485901389 is about 49858.8145567060. The cubic root of 2485901389 is about 1354.6526960365.

The spelling of 2485901389 in words is "two billion, four hundred eighty-five million, nine hundred one thousand, three hundred eighty-nine".