71532070117 has 8 divisors (see below), whose sum is σ = 73743492312. Its totient is φ = 69342873600.

The previous prime is 71532070111. The next prime is 71532070157. The reversal of 71532070117 is 71107023517.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 363703041 + 71168367076 = 19071^2 + 266774^2 .

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

It is not a de Polignac number, because 71532070117 - 2⁷ = 71532069989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71532070111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5549884 + ... + 5562757.

It is an arithmetic number, because the mean of its divisors is an integer number (9217936539).

Almost surely, 2^71532070117 is an apocalyptic number.

It is an amenable number.

71532070117 is a deficient number, since it is larger than the sum of its proper divisors (2211422195).

71532070117 is a wasteful number, since it uses less digits than its factorization.

71532070117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112839.

The product of its (nonzero) digits is 10290, while the sum is 34.

The spelling of 71532070117 in words is "seventy-one billion, five hundred thirty-two million, seventy thousand, one hundred seventeen".