1262858806841 has 2 divisors, whose sum is σ = 1262858806842. Its totient is φ = 1262858806840.

The previous prime is 1262858806837. The next prime is 1262858806931. The reversal of 1262858806841 is 1486088582621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1261176166441 + 1682640400 = 1123021^2 + 41020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262858806841 - 2² = 1262858806837 is a prime.

It is not a weakly prime, because it can be changed into another prime (1262858806831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631429403420 + 631429403421.

It is an arithmetic number, because the mean of its divisors is an integer number (631429403421).

Almost surely, 2^{1262858806841} is an apocalyptic number.

It is an amenable number.

1262858806841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262858806841 is an equidigital number, since it uses as much as digits as its factorization.

1262858806841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11796480, while the sum is 59.

The spelling of 1262858806841 in words is "one trillion, two hundred sixty-two billion, eight hundred fifty-eight million, eight hundred six thousand, eight hundred forty-one".