2015641791287 has 2 divisors, whose sum is σ = 2015641791288. Its totient is φ = 2015641791286.

The previous prime is 2015641791209. The next prime is 2015641791301. The reversal of 2015641791287 is 7821971465102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2015641791287 - 2¹⁰ = 2015641790263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015641701287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007820895643 + 1007820895644.

It is an arithmetic number, because the mean of its divisors is an integer number (1007820895644).

Almost surely, 2^{2015641791287} is an apocalyptic number.

2015641791287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015641791287 is an equidigital number, since it uses as much as digits as its factorization.

2015641791287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 2015641791287 in words is "two trillion, fifteen billion, six hundred forty-one million, seven hundred ninety-one thousand, two hundred eighty-seven".