1282269850091 has 2 divisors, whose sum is σ = 1282269850092. Its totient is φ = 1282269850090.

The previous prime is 1282269850079. The next prime is 1282269850123. The reversal of 1282269850091 is 1900589622821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1282269850091 - 2¹⁴ = 1282269833707 is a prime.

It is a super-2 number, since 2×1282269850091² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1282269850991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641134925045 + 641134925046.

It is an arithmetic number, because the mean of its divisors is an integer number (641134925046).

Almost surely, 2^{1282269850091} is an apocalyptic number.

1282269850091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282269850091 is an equidigital number, since it uses as much as digits as its factorization.

1282269850091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 1282269850091 in words is "one trillion, two hundred eighty-two billion, two hundred sixty-nine million, eight hundred fifty thousand, ninety-one".