71530610751 has 24 divisors (see below), whose sum is σ = 104666952000. Its totient is φ = 47066752512.

The previous prime is 71530610731. The next prime is 71530610849. The reversal of 71530610751 is 15701603517.

71530610751 is a `hidden beast` number, since 7 + 1 + 5 + 30 + 610 + 7 + 5 + 1 = 666.

It is not a de Polignac number, because 71530610751 - 2⁷ = 71530610623 is a prime.

It is a super-2 number, since 2×71530610751² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71530610731) 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 23 ways as a sum of consecutive naturals, for example, 2179995 + ... + 2212563.

It is an arithmetic number, because the mean of its divisors is an integer number (4361123000).

Almost surely, 2^71530610751 is an apocalyptic number.

71530610751 is a deficient number, since it is larger than the sum of its proper divisors (33136341249).

71530610751 is a wasteful number, since it uses less digits than its factorization.

71530610751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35743 (or 35740 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The spelling of 71530610751 in words is "seventy-one billion, five hundred thirty million, six hundred ten thousand, seven hundred fifty-one".