1204136403727 has 2 divisors, whose sum is σ = 1204136403728. Its totient is φ = 1204136403726.

The previous prime is 1204136403689. The next prime is 1204136403803. The reversal of 1204136403727 is 7273046314021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1204136403727 - 2¹¹ = 1204136401679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1204136403727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204136406727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602068201863 + 602068201864.

It is an arithmetic number, because the mean of its divisors is an integer number (602068201864).

Almost surely, 2^{1204136403727} is an apocalyptic number.

1204136403727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204136403727 is an equidigital number, since it uses as much as digits as its factorization.

1204136403727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 1204136403727 in words is "one trillion, two hundred four billion, one hundred thirty-six million, four hundred three thousand, seven hundred twenty-seven".