71855573873 has 8 divisors (see below), whose sum is σ = 72265284000. Its totient is φ = 71445956128.

The previous prime is 71855573819. The next prime is 71855573891. The reversal of 71855573873 is 37837555817.

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

It is a cyclic number.

It is not a de Polignac number, because 71855573873 - 2¹² = 71855569777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71855573813) 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 7 ways as a sum of consecutive naturals, for example, 2076965 + ... + 2111277.

It is an arithmetic number, because the mean of its divisors is an integer number (9033160500).

Almost surely, 2^71855573873 is an apocalyptic number.

It is an amenable number.

71855573873 is a deficient number, since it is larger than the sum of its proper divisors (409710127).

71855573873 is a wasteful number, since it uses less digits than its factorization.

71855573873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46191.

The product of its digits is 24696000, while the sum is 59.

The spelling of 71855573873 in words is "seventy-one billion, eight hundred fifty-five million, five hundred seventy-three thousand, eight hundred seventy-three".