3855540893 has 2 divisors, whose sum is σ = 3855540894. Its totient is φ = 3855540892.

The previous prime is 3855540877. The next prime is 3855540919. The reversal of 3855540893 is 3980455583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3799859449 + 55681444 = 61643^2 + 7462^2 .

It is a cyclic number.

It is not a de Polignac number, because 3855540893 - 2⁴ = 3855540877 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 (3855570893) 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, 1927770446 + 1927770447.

It is an arithmetic number, because the mean of its divisors is an integer number (1927770447).

Almost surely, 2^3855540893 is an apocalyptic number.

It is an amenable number.

3855540893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855540893 is an equidigital number, since it uses as much as digits as its factorization.

3855540893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The square root of 3855540893 is about 62093.0019647947. The cubic root of 3855540893 is about 1568.0567317139.

The spelling of 3855540893 in words is "three billion, eight hundred fifty-five million, five hundred forty thousand, eight hundred ninety-three".