71520858467 has 2 divisors, whose sum is σ = 71520858468. Its totient is φ = 71520858466.

The previous prime is 71520858403. The next prime is 71520858511. The reversal of 71520858467 is 76485802517.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71520858467 - 2⁶ = 71520858403 is a prime.

It is not a weakly prime, because it can be changed into another prime (71520854467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35760429233 + 35760429234.

It is an arithmetic number, because the mean of its divisors is an integer number (35760429234).

Almost surely, 2^71520858467 is an apocalyptic number.

71520858467 is a deficient number, since it is larger than the sum of its proper divisors (1).

71520858467 is an equidigital number, since it uses as much as digits as its factorization.

71520858467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 71520858467 in words is "seventy-one billion, five hundred twenty million, eight hundred fifty-eight thousand, four hundred sixty-seven".