647325815141 has 2 divisors, whose sum is σ = 647325815142. Its totient is φ = 647325815140.

The previous prime is 647325815093. The next prime is 647325815243. The reversal of 647325815141 is 141518523746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415449858916 + 231875956225 = 644554^2 + 481535^2 .

It is a cyclic number.

It is not a de Polignac number, because 647325815141 - 2⁶ = 647325815077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647325817141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323662907570 + 323662907571.

It is an arithmetic number, because the mean of its divisors is an integer number (323662907571).

Almost surely, 2^647325815141 is an apocalyptic number.

It is an amenable number.

647325815141 is a deficient number, since it is larger than the sum of its proper divisors (1).

647325815141 is an equidigital number, since it uses as much as digits as its factorization.

647325815141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 47.

The spelling of 647325815141 in words is "six hundred forty-seven billion, three hundred twenty-five million, eight hundred fifteen thousand, one hundred forty-one".