71087994893459 has 2 divisors, whose sum is σ = 71087994893460. Its totient is φ = 71087994893458.

The previous prime is 71087994893413. The next prime is 71087994893477. The reversal of 71087994893459 is 95439849978017.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71087994893459 - 2¹² = 71087994889363 is a prime.

It is not a weakly prime, because it can be changed into another prime (71087994890459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35543997446729 + 35543997446730.

It is an arithmetic number, because the mean of its divisors is an integer number (35543997446730).

Almost surely, 2^{71087994893459} is an apocalyptic number.

71087994893459 is a deficient number, since it is larger than the sum of its proper divisors (1).

71087994893459 is an equidigital number, since it uses as much as digits as its factorization.

71087994893459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4938071040, while the sum is 83.

The spelling of 71087994893459 in words is "seventy-one trillion, eighty-seven billion, nine hundred ninety-four million, eight hundred ninety-three thousand, four hundred fifty-nine".