71058498623 has 32 divisors (see below), whose sum is σ = 84832051200. Its totient is φ = 58240788480.

The previous prime is 71058498619. The next prime is 71058498629. The reversal of 71058498623 is 32689485017.

It is a Cunningham number, because it is equal to 266568²-1.

It is not a de Polignac number, because 71058498623 - 2² = 71058498619 is a prime.

It is a super-2 number, since 2×71058498623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71058498629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8259278 + ... + 8267876.

It is an arithmetic number, because the mean of its divisors is an integer number (2651001600).

It is a 1-persistent number, because it is pandigital, but 2⋅71058498623 = 142116997246 is not.

Almost surely, 2^71058498623 is an apocalyptic number.

71058498623 is a deficient number, since it is larger than the sum of its proper divisors (13773552577).

71058498623 is a wasteful number, since it uses less digits than its factorization.

71058498623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9087.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 71058498623 in words is "seventy-one billion, fifty-eight million, four hundred ninety-eight thousand, six hundred twenty-three".