1244036263287 has 4 divisors (see below), whose sum is σ = 1658715017720. Its totient is φ = 829357508856.

The previous prime is 1244036263277. The next prime is 1244036263319. The reversal of 1244036263287 is 7823626304421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1244036263287 - 2¹⁵ = 1244036230519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244036263237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207339377212 + ... + 207339377217.

It is an arithmetic number, because the mean of its divisors is an integer number (414678754430).

Almost surely, 2^{1244036263287} is an apocalyptic number.

1244036263287 is a deficient number, since it is larger than the sum of its proper divisors (414678754433).

1244036263287 is an equidigital number, since it uses as much as digits as its factorization.

1244036263287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414678754432.

The product of its (nonzero) digits is 2322432, while the sum is 48.

The spelling of 1244036263287 in words is "one trillion, two hundred forty-four billion, thirty-six million, two hundred sixty-three thousand, two hundred eighty-seven".