6972521747 has 2 divisors, whose sum is σ = 6972521748. Its totient is φ = 6972521746.

The previous prime is 6972521723. The next prime is 6972521771. The reversal of 6972521747 is 7471252796.

It is a balanced prime because it is at equal distance from previous prime (6972521723) and next prime (6972521771).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6972521747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6972521695 and 6972521704.

It is not a weakly prime, because it can be changed into another prime (6972521947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3486260873 + 3486260874.

It is an arithmetic number, because the mean of its divisors is an integer number (3486260874).

Almost surely, 2^6972521747 is an apocalyptic number.

6972521747 is a deficient number, since it is larger than the sum of its proper divisors (1).

6972521747 is an equidigital number, since it uses as much as digits as its factorization.

6972521747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 50.

The square root of 6972521747 is about 83501.6272116897. The cubic root of 6972521747 is about 1910.4248524493.

The spelling of 6972521747 in words is "six billion, nine hundred seventy-two million, five hundred twenty-one thousand, seven hundred forty-seven".