71508008015 has 16 divisors (see below), whose sum is σ = 86664534528. Its totient is φ = 56636737056.

The previous prime is 71508008009. The next prime is 71508008029. The reversal of 71508008015 is 51080080517.

It is a cyclic number.

It is not a de Polignac number, because 71508008015 - 2⁶ = 71508007951 is a prime.

It is a super-2 number, since 2×71508008015² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2336804 + ... + 2367206.

It is an arithmetic number, because the mean of its divisors is an integer number (5416533408).

Almost surely, 2^71508008015 is an apocalyptic number.

71508008015 is a deficient number, since it is larger than the sum of its proper divisors (15156526513).

71508008015 is a wasteful number, since it uses less digits than its factorization.

71508008015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35078.

The product of its (nonzero) digits is 11200, while the sum is 35.

The spelling of 71508008015 in words is "seventy-one billion, five hundred eight million, eight thousand, fifteen".