2487628871389 has 2 divisors, whose sum is σ = 2487628871390. Its totient is φ = 2487628871388.

The previous prime is 2487628871333. The next prime is 2487628871393. The reversal of 2487628871389 is 9831788267842.

2487628871389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2295021994489 + 192606876900 = 1514933^2 + 438870^2 .

It is a cyclic number.

It is not a de Polignac number, because 2487628871389 - 2⁷ = 2487628871261 is a prime.

It is a super-4 number, since 4×2487628871389⁴ (a number of 51 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2487628881389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243814435694 + 1243814435695.

It is an arithmetic number, because the mean of its divisors is an integer number (1243814435695).

Almost surely, 2^{2487628871389} is an apocalyptic number.

It is an amenable number.

2487628871389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2487628871389 is an equidigital number, since it uses as much as digits as its factorization.

2487628871389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 520224768, while the sum is 73.

The spelling of 2487628871389 in words is "two trillion, four hundred eighty-seven billion, six hundred twenty-eight million, eight hundred seventy-one thousand, three hundred eighty-nine".