3812180549 has 2 divisors, whose sum is σ = 3812180550. Its totient is φ = 3812180548.

The previous prime is 3812180527. The next prime is 3812180573. The reversal of 3812180549 is 9450812183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2320830625 + 1491349924 = 48175^2 + 38618^2 .

It is a cyclic number.

It is not a de Polignac number, because 3812180549 - 2¹² = 3812176453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3812180509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1906090274 + 1906090275.

It is an arithmetic number, because the mean of its divisors is an integer number (1906090275).

Almost surely, 2^3812180549 is an apocalyptic number.

It is an amenable number.

3812180549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3812180549 is an equidigital number, since it uses as much as digits as its factorization.

3812180549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 3812180549 is about 61742.8582833675. The cubic root of 3812180549 is about 1562.1563086965.

The spelling of 3812180549 in words is "three billion, eight hundred twelve million, one hundred eighty thousand, five hundred forty-nine".