47642227697 has 2 divisors, whose sum is σ = 47642227698. Its totient is φ = 47642227696.

The previous prime is 47642227651. The next prime is 47642227723. The reversal of 47642227697 is 79672224674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47600766976 + 41460721 = 218176^2 + 6439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47642227697 is a prime.

It is not a weakly prime, because it can be changed into another prime (47642223697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23821113848 + 23821113849.

It is an arithmetic number, because the mean of its divisors is an integer number (23821113849).

Almost surely, 2^47642227697 is an apocalyptic number.

It is an amenable number.

47642227697 is a deficient number, since it is larger than the sum of its proper divisors (1).

47642227697 is an equidigital number, since it uses as much as digits as its factorization.

47642227697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14224896, while the sum is 56.

The spelling of 47642227697 in words is "forty-seven billion, six hundred forty-two million, two hundred twenty-seven thousand, six hundred ninety-seven".