3745072811 has 2 divisors, whose sum is σ = 3745072812. Its totient is φ = 3745072810.

The previous prime is 3745072777. The next prime is 3745072813. The reversal of 3745072811 is 1182705473.

It is a strong prime.

It is an emirp because it is prime and its reverse (1182705473) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3745072811 is a prime.

Together with 3745072813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3745072813) 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, 1872536405 + 1872536406.

It is an arithmetic number, because the mean of its divisors is an integer number (1872536406).

Almost surely, 2^3745072811 is an apocalyptic number.

3745072811 is a deficient number, since it is larger than the sum of its proper divisors (1).

3745072811 is an equidigital number, since it uses as much as digits as its factorization.

3745072811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 3745072811 is about 61197.0000163407. Note that the first 4 decimals coincide. The cubic root of 3745072811 is about 1552.9355137749.

The spelling of 3745072811 in words is "three billion, seven hundred forty-five million, seventy-two thousand, eight hundred eleven".