1223785013759 has 8 divisors (see below), whose sum is σ = 1525757939328. Its totient is φ = 953598711960.

The previous prime is 1223785013753. The next prime is 1223785013761. The reversal of 1223785013759 is 9573105873221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223785013759 is a prime.

It is a super-2 number, since 2×1223785013759² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1223785013759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223785013753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7946655857 + ... + 7946656010.

It is an arithmetic number, because the mean of its divisors is an integer number (190719742416).

Almost surely, 2^{1223785013759} is an apocalyptic number.

1223785013759 is a deficient number, since it is larger than the sum of its proper divisors (301972925569).

1223785013759 is a wasteful number, since it uses less digits than its factorization.

1223785013759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15893311885.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 1223785013759 in words is "one trillion, two hundred twenty-three billion, seven hundred eighty-five million, thirteen thousand, seven hundred fifty-nine".