3158904745849 has 2 divisors, whose sum is σ = 3158904745850. Its totient is φ = 3158904745848.

The previous prime is 3158904745813. The next prime is 3158904745877. The reversal of 3158904745849 is 9485474098513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1712734951225 + 1446169794624 = 1308715^2 + 1202568^2 .

It is a cyclic number.

It is not a de Polignac number, because 3158904745849 - 2⁷ = 3158904745721 is a prime.

It is not a weakly prime, because it can be changed into another prime (3158904745949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579452372924 + 1579452372925.

It is an arithmetic number, because the mean of its divisors is an integer number (1579452372925).

Almost surely, 2^{3158904745849} is an apocalyptic number.

It is an amenable number.

3158904745849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3158904745849 is an equidigital number, since it uses as much as digits as its factorization.

3158904745849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174182400, while the sum is 67.

The spelling of 3158904745849 in words is "three trillion, one hundred fifty-eight billion, nine hundred four million, seven hundred forty-five thousand, eight hundred forty-nine".