71208196993 has 16 divisors (see below), whose sum is σ = 72290836800. Its totient is φ = 70135640640.

The previous prime is 71208196991. The next prime is 71208197023. The reversal of 71208196993 is 39969180217.

It is a cyclic number.

It is not a de Polignac number, because 71208196993 - 2¹ = 71208196991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71208196991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11142243 + ... + 11148631.

It is an arithmetic number, because the mean of its divisors is an integer number (4518177300).

Almost surely, 2^71208196993 is an apocalyptic number.

It is an amenable number.

71208196993 is a deficient number, since it is larger than the sum of its proper divisors (1082639807).

71208196993 is a wasteful number, since it uses less digits than its factorization.

71208196993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7152.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 71208196993 in words is "seventy-one billion, two hundred eight million, one hundred ninety-six thousand, nine hundred ninety-three".