71000634278 has 16 divisors (see below), whose sum is σ = 121720695840. Its totient is φ = 30427512576.

The previous prime is 71000634259. The next prime is 71000634301. The reversal of 71000634278 is 87243600017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264500 + ... + 460392.

It is an arithmetic number, because the mean of its divisors is an integer number (7607543490).

Almost surely, 2^71000634278 is an apocalyptic number.

71000634278 is a deficient number, since it is larger than the sum of its proper divisors (50720061562).

71000634278 is a wasteful number, since it uses less digits than its factorization.

71000634278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221791.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 71000634278 in words is "seventy-one billion, six hundred thirty-four thousand, two hundred seventy-eight".