3728865851 has 2 divisors, whose sum is σ = 3728865852. Its totient is φ = 3728865850.

The previous prime is 3728865839. The next prime is 3728865859. The reversal of 3728865851 is 1585688273.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3728865851 - 2²² = 3724671547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3728865793 and 3728865802.

It is not a weakly prime, because it can be changed into another prime (3728865859) 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, 1864432925 + 1864432926.

It is an arithmetic number, because the mean of its divisors is an integer number (1864432926).

Almost surely, 2^3728865851 is an apocalyptic number.

3728865851 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728865851 is an equidigital number, since it uses as much as digits as its factorization.

3728865851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 53.

The square root of 3728865851 is about 61064.4401513680. The cubic root of 3728865851 is about 1550.6921433269.

The spelling of 3728865851 in words is "three billion, seven hundred twenty-eight million, eight hundred sixty-five thousand, eight hundred fifty-one".