1421245261026 has 12 divisors (see below), whose sum is σ = 3079364732262. Its totient is φ = 473748420336.

The previous prime is 1421245260989. The next prime is 1421245261057. The reversal of 1421245261026 is 6201625421241.

1421245261026 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 24 + 526 + 102 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1416930741801 + 4314519225 = 1190349^2 + 65685^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 39479035011 + ... + 39479035046.

Almost surely, 2^{1421245261026} is an apocalyptic number.

1421245261026 is an abundant number, since it is smaller than the sum of its proper divisors (1658119471236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421245261026 is a wasteful number, since it uses less digits than its factorization.

1421245261026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78958070065 (or 78958070062 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 1421245261026 in words is "one trillion, four hundred twenty-one billion, two hundred forty-five million, two hundred sixty-one thousand, twenty-six".