3801126473849 has 2 divisors, whose sum is σ = 3801126473850. Its totient is φ = 3801126473848.

The previous prime is 3801126473813. The next prime is 3801126473941. The reversal of 3801126473849 is 9483746211083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3583191556624 + 217934917225 = 1892932^2 + 466835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3801126473849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3801126473794 and 3801126473803.

It is not a weakly prime, because it can be changed into another prime (3801126433849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1900563236924 + 1900563236925.

It is an arithmetic number, because the mean of its divisors is an integer number (1900563236925).

Almost surely, 2^{3801126473849} is an apocalyptic number.

It is an amenable number.

3801126473849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3801126473849 is an equidigital number, since it uses as much as digits as its factorization.

3801126473849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 3801126473849 in words is "three trillion, eight hundred one billion, one hundred twenty-six million, four hundred seventy-three thousand, eight hundred forty-nine".