2519635890389 has 2 divisors, whose sum is σ = 2519635890390. Its totient is φ = 2519635890388.

The previous prime is 2519635890383. The next prime is 2519635890391. The reversal of 2519635890389 is 9830985369152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2352695822500 + 166940067889 = 1533850^2 + 408583^2 .

It is a cyclic number.

It is not a de Polignac number, because 2519635890389 - 2⁸ = 2519635890133 is a prime.

Together with 2519635890391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2519635890383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259817945194 + 1259817945195.

It is an arithmetic number, because the mean of its divisors is an integer number (1259817945195).

Almost surely, 2^{2519635890389} is an apocalyptic number.

It is an amenable number.

2519635890389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2519635890389 is an equidigital number, since it uses as much as digits as its factorization.

2519635890389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125971200, while the sum is 68.

The spelling of 2519635890389 in words is "two trillion, five hundred nineteen billion, six hundred thirty-five million, eight hundred ninety thousand, three hundred eighty-nine".