71715906370 has 16 divisors (see below), whose sum is σ = 129264754680. Its totient is φ = 28647224064.

The previous prime is 71715906349. The next prime is 71715906371. The reversal of 71715906370 is 7360951717.

It can be written as a sum of positive squares in 4 ways, for example, as 70786327249 + 929579121 = 266057^2 + 30489^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71715906370.

It is not an unprimeable number, because it can be changed into a prime (71715906371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4884615 + ... + 4899274.

Almost surely, 2^71715906370 is an apocalyptic number.

71715906370 is a deficient number, since it is larger than the sum of its proper divisors (57548848310).

71715906370 is a wasteful number, since it uses less digits than its factorization.

71715906370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784629.

The product of its (nonzero) digits is 277830, while the sum is 46.

The spelling of 71715906370 in words is "seventy-one billion, seven hundred fifteen million, nine hundred six thousand, three hundred seventy".