1244487842036 has 24 divisors (see below), whose sum is σ = 2185735495944. Its totient is φ = 619992253440.

The previous prime is 1244487841997. The next prime is 1244487842057. The reversal of 1244487842036 is 6302487844421.

It can be written as a sum of positive squares in 4 ways, for example, as 264189832036 + 980298010000 = 513994^2 + 990100^2 .

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 36550076 + ... + 36584108.

It is an arithmetic number, because the mean of its divisors is an integer number (91072312331).

Almost surely, 2^{1244487842036} is an apocalyptic number.

It is an amenable number.

1244487842036 is a deficient number, since it is larger than the sum of its proper divisors (941247653908).

1244487842036 is a wasteful number, since it uses less digits than its factorization.

1244487842036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66851 (or 66849 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 53.

The spelling of 1244487842036 in words is "one trillion, two hundred forty-four billion, four hundred eighty-seven million, eight hundred forty-two thousand, thirty-six".