71093407690 has 8 divisors (see below), whose sum is σ = 127968133860. Its totient is φ = 28437363072.

The previous prime is 71093407633. The next prime is 71093407691. The reversal of 71093407690 is 9670439017.

It can be written as a sum of positive squares in 2 ways, for example, as 71093156689 + 251001 = 266633^2 + 501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×71093407690² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71093407690.

It is not an unprimeable number, because it can be changed into a prime (71093407691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3554670375 + ... + 3554670394.

Almost surely, 2^71093407690 is an apocalyptic number.

71093407690 is a deficient number, since it is larger than the sum of its proper divisors (56874726170).

71093407690 is a wasteful number, since it uses less digits than its factorization.

71093407690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109340776.

The product of its (nonzero) digits is 285768, while the sum is 46.

The spelling of 71093407690 in words is "seventy-one billion, ninety-three million, four hundred seven thousand, six hundred ninety".