3972331247747 has 2 divisors, whose sum is σ = 3972331247748. Its totient is φ = 3972331247746.

The previous prime is 3972331247723. The next prime is 3972331247771. The reversal of 3972331247747 is 7477421332793.

It is a balanced prime because it is at equal distance from previous prime (3972331247723) and next prime (3972331247771).

It is an emirp because it is prime and its reverse (7477421332793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3972331247747 - 2⁶ = 3972331247683 is a prime.

It is not a weakly prime, because it can be changed into another prime (3972331297747) 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, 1986165623873 + 1986165623874.

It is an arithmetic number, because the mean of its divisors is an integer number (1986165623874).

Almost surely, 2^{3972331247747} is an apocalyptic number.

3972331247747 is a deficient number, since it is larger than the sum of its proper divisors (1).

3972331247747 is an equidigital number, since it uses as much as digits as its factorization.

3972331247747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37340352, while the sum is 59.

The spelling of 3972331247747 in words is "three trillion, nine hundred seventy-two billion, three hundred thirty-one million, two hundred forty-seven thousand, seven hundred forty-seven".