71260130009 has 2 divisors, whose sum is σ = 71260130010. Its totient is φ = 71260130008.

The previous prime is 71260129987. The next prime is 71260130099. The reversal of 71260130009 is 90003106217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65931859984 + 5328270025 = 256772^2 + 72995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71260130009 is a prime.

It is a super-2 number, since 2×71260130009² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71260130099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35630065004 + 35630065005.

It is an arithmetic number, because the mean of its divisors is an integer number (35630065005).

Almost surely, 2^71260130009 is an apocalyptic number.

It is an amenable number.

71260130009 is a deficient number, since it is larger than the sum of its proper divisors (1).

71260130009 is an equidigital number, since it uses as much as digits as its factorization.

71260130009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The spelling of 71260130009 in words is "seventy-one billion, two hundred sixty million, one hundred thirty thousand, nine".