1227435400799 has 4 divisors (see below), whose sum is σ = 1227442843536. Its totient is φ = 1227427958064.

The previous prime is 1227435400661. The next prime is 1227435400823. The reversal of 1227435400799 is 9970045347221.

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-1227435400799 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 1227435400799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227495400799) 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, 3468254 + ... + 3805739.

It is an arithmetic number, because the mean of its divisors is an integer number (306860710884).

Almost surely, 2^{1227435400799} is an apocalyptic number.

1227435400799 is a deficient number, since it is larger than the sum of its proper divisors (7442737).

1227435400799 is an equidigital number, since it uses as much as digits as its factorization.

1227435400799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442736.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 1227435400799 in words is "one trillion, two hundred twenty-seven billion, four hundred thirty-five million, four hundred thousand, seven hundred ninety-nine".