71402568016 has 40 divisors (see below), whose sum is σ = 149295444480. Its totient is φ = 32886185856.

The previous prime is 71402568007. The next prime is 71402568023. The reversal of 71402568016 is 61086520417.

It is a super-3 number, since 3×71402568016³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71402568016.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 258700 + ... + 457963.

It is an arithmetic number, because the mean of its divisors is an integer number (3732386112).

Almost surely, 2^71402568016 is an apocalyptic number.

It is an amenable number.

71402568016 is an abundant number, since it is smaller than the sum of its proper divisors (77892876464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71402568016 is a wasteful number, since it uses less digits than its factorization.

71402568016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717163 (or 717157 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 71402568016 in words is "seventy-one billion, four hundred two million, five hundred sixty-eight thousand, sixteen".