10072218517 has 2 divisors, whose sum is σ = 10072218518. Its totient is φ = 10072218516.

The previous prime is 10072218509. The next prime is 10072218539. The reversal of 10072218517 is 71581227001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8025651396 + 2046567121 = 89586^2 + 45239^2 .

It is an emirp because it is prime and its reverse (71581227001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10072218517 - 2³ = 10072218509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10072218617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5036109258 + 5036109259.

It is an arithmetic number, because the mean of its divisors is an integer number (5036109259).

Almost surely, 2^10072218517 is an apocalyptic number.

It is an amenable number.

10072218517 is a deficient number, since it is larger than the sum of its proper divisors (1).

10072218517 is an equidigital number, since it uses as much as digits as its factorization.

10072218517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 34.

The spelling of 10072218517 in words is "ten billion, seventy-two million, two hundred eighteen thousand, five hundred seventeen".