1904549042953 has 2 divisors, whose sum is σ = 1904549042954. Its totient is φ = 1904549042952.

The previous prime is 1904549042861. The next prime is 1904549043017. The reversal of 1904549042953 is 3592409454091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1768998421369 + 135550621584 = 1330037^2 + 368172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1904549042953 - 2⁹ = 1904549042441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1904549042894 and 1904549042903.

It is not a weakly prime, because it can be changed into another prime (1904549045953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 952274521476 + 952274521477.

It is an arithmetic number, because the mean of its divisors is an integer number (952274521477).

Almost surely, 2^{1904549042953} is an apocalyptic number.

It is an amenable number.

1904549042953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1904549042953 is an equidigital number, since it uses as much as digits as its factorization.

1904549042953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 1904549042953 in words is "one trillion, nine hundred four billion, five hundred forty-nine million, forty-two thousand, nine hundred fifty-three".