1223674742399 has 8 divisors (see below), whose sum is σ = 1249742106048. Its totient is φ = 1197608700960.

The previous prime is 1223674742369. The next prime is 1223674742471. The reversal of 1223674742399 is 9932474763221.

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-1223674742399 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 (1223674742369) 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 7 ways as a sum of consecutive naturals, for example, 1667369 + ... + 2286365.

It is an arithmetic number, because the mean of its divisors is an integer number (156217763256).

Almost surely, 2^{1223674742399} is an apocalyptic number.

1223674742399 is a deficient number, since it is larger than the sum of its proper divisors (26067363649).

1223674742399 is an equidigital number, since it uses as much as digits as its factorization.

1223674742399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661105.

The product of its digits is 27433728, while the sum is 59.

The spelling of 1223674742399 in words is "one trillion, two hundred twenty-three billion, six hundred seventy-four million, seven hundred forty-two thousand, three hundred ninety-nine".