71653261875 has 160 divisors (see below), whose sum is σ = 131339208000. Its totient is φ = 34525440000.

The previous prime is 71653261873. The next prime is 71653261943. The reversal of 71653261875 is 57816235617.

It is not a de Polignac number, because 71653261875 - 2¹ = 71653261873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71653261873) 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 159 ways as a sum of consecutive naturals, for example, 395874285 + ... + 395874465.

It is an arithmetic number, because the mean of its divisors is an integer number (820870050).

Almost surely, 2^71653261875 is an apocalyptic number.

71653261875 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71653261875 is a deficient number, since it is larger than the sum of its proper divisors (59685946125).

71653261875 is a wasteful number, since it uses less digits than its factorization.

71653261875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 460 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The spelling of 71653261875 in words is "seventy-one billion, six hundred fifty-three million, two hundred sixty-one thousand, eight hundred seventy-five".