1144907217583 has 4 divisors (see below), whose sum is σ = 1184386776840. Its totient is φ = 1105427658328.

The previous prime is 1144907217541. The next prime is 1144907217593. The reversal of 1144907217583 is 3857127094411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144907217583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144907217583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144907217523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19739779585 + ... + 19739779642.

It is an arithmetic number, because the mean of its divisors is an integer number (296096694210).

Almost surely, 2^{1144907217583} is an apocalyptic number.

1144907217583 is a deficient number, since it is larger than the sum of its proper divisors (39479559257).

1144907217583 is an equidigital number, since it uses as much as digits as its factorization.

1144907217583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39479559256.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 1144907217583 in words is "one trillion, one hundred forty-four billion, nine hundred seven million, two hundred seventeen thousand, five hundred eighty-three".