71183007081 has 24 divisors (see below), whose sum is σ = 102986083200. Its totient is φ = 47378714400.

The previous prime is 71183007061. The next prime is 71183007089. The reversal of 71183007081 is 18070038117.

It is not a de Polignac number, because 71183007081 - 2⁹ = 71183006569 is a prime.

It is a super-2 number, since 2×71183007081² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71183007089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23253291 + ... + 23256351.

It is an arithmetic number, because the mean of its divisors is an integer number (4291086800).

Almost surely, 2^71183007081 is an apocalyptic number.

It is an amenable number.

71183007081 is a deficient number, since it is larger than the sum of its proper divisors (31803076119).

71183007081 is a wasteful number, since it uses less digits than its factorization.

71183007081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397 (or 6394 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The spelling of 71183007081 in words is "seventy-one billion, one hundred eighty-three million, seven thousand, eighty-one".