3153981841849 has 2 divisors, whose sum is σ = 3153981841850. Its totient is φ = 3153981841848.

The previous prime is 3153981841789. The next prime is 3153981841963. The reversal of 3153981841849 is 9481481893513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2560342411449 + 593639430400 = 1600107^2 + 770480^2 .

It is a cyclic number.

It is not a de Polignac number, because 3153981841849 - 2⁷ = 3153981841721 is a prime.

It is not a weakly prime, because it can be changed into another prime (3153981241849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1576990920924 + 1576990920925.

It is an arithmetic number, because the mean of its divisors is an integer number (1576990920925).

Almost surely, 2^{3153981841849} is an apocalyptic number.

It is an amenable number.

3153981841849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3153981841849 is an equidigital number, since it uses as much as digits as its factorization.

3153981841849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29859840, while the sum is 64.

The spelling of 3153981841849 in words is "three trillion, one hundred fifty-three billion, nine hundred eighty-one million, eight hundred forty-one thousand, eight hundred forty-nine".