2028357998791 has 2 divisors, whose sum is σ = 2028357998792. Its totient is φ = 2028357998790.

The previous prime is 2028357998767. The next prime is 2028357998813. The reversal of 2028357998791 is 1978997538202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028357998791 - 2⁷ = 2028357998663 is a prime.

It is a super-2 number, since 2×2028357998791² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2028357998791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028357998701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014178999395 + 1014178999396.

It is an arithmetic number, because the mean of its divisors is an integer number (1014178999396).

Almost surely, 2^{2028357998791} is an apocalyptic number.

2028357998791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028357998791 is an equidigital number, since it uses as much as digits as its factorization.

2028357998791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 2028357998791 in words is "two trillion, twenty-eight billion, three hundred fifty-seven million, nine hundred ninety-eight thousand, seven hundred ninety-one".