3747612643 has 2 divisors, whose sum is σ = 3747612644. Its totient is φ = 3747612642.

The previous prime is 3747612641. The next prime is 3747612697. The reversal of 3747612643 is 3462167473.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3747612643 - 2¹ = 3747612641 is a prime.

Together with 3747612641, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3747612643.

It is not a weakly prime, because it can be changed into another prime (3747612641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1873806321 + 1873806322.

It is an arithmetic number, because the mean of its divisors is an integer number (1873806322).

Almost surely, 2^3747612643 is an apocalyptic number.

3747612643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3747612643 is an equidigital number, since it uses as much as digits as its factorization.

3747612643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 43.

The square root of 3747612643 is about 61217.7477779116. The cubic root of 3747612643 is about 1553.2864908429.

The spelling of 3747612643 in words is "three billion, seven hundred forty-seven million, six hundred twelve thousand, six hundred forty-three".