71298788993 has 2 divisors, whose sum is σ = 71298788994. Its totient is φ = 71298788992.

The previous prime is 71298788963. The next prime is 71298789007. The reversal of 71298788993 is 39988789217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43109386384 + 28189402609 = 207628^2 + 167897^2 .

It is a cyclic number.

It is not a de Polignac number, because 71298788993 - 2²⁶ = 71231680129 is a prime.

It is not a weakly prime, because it can be changed into another prime (71298788933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35649394496 + 35649394497.

It is an arithmetic number, because the mean of its divisors is an integer number (35649394497).

Almost surely, 2^71298788993 is an apocalyptic number.

It is an amenable number.

71298788993 is a deficient number, since it is larger than the sum of its proper divisors (1).

71298788993 is an equidigital number, since it uses as much as digits as its factorization.

71298788993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109734912, while the sum is 71.

The spelling of 71298788993 in words is "seventy-one billion, two hundred ninety-eight million, seven hundred eighty-eight thousand, nine hundred ninety-three".