2758812021191 has 2 divisors, whose sum is σ = 2758812021192. Its totient is φ = 2758812021190.

The previous prime is 2758812021169. The next prime is 2758812021221. The reversal of 2758812021191 is 1911202188572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2758812021191 - 2¹⁸ = 2758811759047 is a prime.

It is a super-2 number, since 2×2758812021191² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2758812521191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1379406010595 + 1379406010596.

It is an arithmetic number, because the mean of its divisors is an integer number (1379406010596).

Almost surely, 2^{2758812021191} is an apocalyptic number.

2758812021191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2758812021191 is an equidigital number, since it uses as much as digits as its factorization.

2758812021191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 47.

The spelling of 2758812021191 in words is "two trillion, seven hundred fifty-eight billion, eight hundred twelve million, twenty-one thousand, one hundred ninety-one".