1204907088989 has 2 divisors, whose sum is σ = 1204907088990. Its totient is φ = 1204907088988.

The previous prime is 1204907088977. The next prime is 1204907088991. The reversal of 1204907088989 is 9898807094021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605392924900 + 599514164089 = 778070^2 + 774283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204907088989 - 2¹² = 1204907084893 is a prime.

Together with 1204907088991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204907088949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602453544494 + 602453544495.

It is an arithmetic number, because the mean of its divisors is an integer number (602453544495).

Almost surely, 2^{1204907088989} is an apocalyptic number.

It is an amenable number.

1204907088989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204907088989 is an equidigital number, since it uses as much as digits as its factorization.

1204907088989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 65.

The spelling of 1204907088989 in words is "one trillion, two hundred four billion, nine hundred seven million, eighty-eight thousand, nine hundred eighty-nine".