1204538353979 has 2 divisors, whose sum is σ = 1204538353980. Its totient is φ = 1204538353978.

The previous prime is 1204538353969. The next prime is 1204538354027. The reversal of 1204538353979 is 9793538354021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204538353979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204538353919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602269176989 + 602269176990.

It is an arithmetic number, because the mean of its divisors is an integer number (602269176990).

Almost surely, 2^{1204538353979} is an apocalyptic number.

1204538353979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204538353979 is an equidigital number, since it uses as much as digits as its factorization.

1204538353979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 1204538353979 in words is "one trillion, two hundred four billion, five hundred thirty-eight million, three hundred fifty-three thousand, nine hundred seventy-nine".