71000639296 has 28 divisors (see below), whose sum is σ = 140900538112. Its totient is φ = 35498141568.

The previous prime is 71000639273. The next prime is 71000639317. The reversal of 71000639296 is 69293600017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710241 + ... + 1751263.

Almost surely, 2^71000639296 is an apocalyptic number.

It is an amenable number.

71000639296 is a deficient number, since it is larger than the sum of its proper divisors (69899898816).

71000639296 is a wasteful number, since it uses less digits than its factorization.

71000639296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68078 (or 68068 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 71000639296 in words is "seventy-one billion, six hundred thirty-nine thousand, two hundred ninety-six".