71000634193 has 4 divisors (see below), whose sum is σ = 71001808740. Its totient is φ = 70999459648.

The previous prime is 71000634191. The next prime is 71000634227. The reversal of 71000634193 is 39143600017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22163170129 + 48837464064 = 148873^2 + 220992^2 .

It is a cyclic number.

It is not a de Polignac number, because 71000634193 - 2¹ = 71000634191 is a prime.

It is a super-2 number, since 2×71000634193² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71000634191) 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, 491380 + ... + 619237.

It is an arithmetic number, because the mean of its divisors is an integer number (17750452185).

Almost surely, 2^71000634193 is an apocalyptic number.

It is an amenable number.

71000634193 is a deficient number, since it is larger than the sum of its proper divisors (1174547).

71000634193 is a wasteful number, since it uses less digits than its factorization.

71000634193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174546.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 71000634193 in words is "seventy-one billion, six hundred thirty-four thousand, one hundred ninety-three".