1281226353862 has 32 divisors (see below), whose sum is σ = 2365647100992. Its totient is φ = 506793176064.

The previous prime is 1281226353851. The next prime is 1281226353863. The reversal of 1281226353862 is 2683536221821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281226353863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966658 + ... + 1869994.

It is an arithmetic number, because the mean of its divisors is an integer number (73926471906).

Almost surely, 2^{1281226353862} is an apocalyptic number.

1281226353862 is a deficient number, since it is larger than the sum of its proper divisors (1084420747130).

1281226353862 is a wasteful number, since it uses less digits than its factorization.

1281226353862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911152.

The product of its digits is 1658880, while the sum is 49.

The spelling of 1281226353862 in words is "one trillion, two hundred eighty-one billion, two hundred twenty-six million, three hundred fifty-three thousand, eight hundred sixty-two".