71843771051 has 8 divisors (see below), whose sum is σ = 77373278304. Its totient is φ = 66314701440.

The previous prime is 71843771047. The next prime is 71843771053. The reversal of 71843771051 is 15017734817.

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

It is not a de Polignac number, because 71843771051 - 2² = 71843771047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71843770993 and 71843771011.

It is not an unprimeable number, because it can be changed into a prime (71843771053) 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, 283946 + ... + 473616.

It is an arithmetic number, because the mean of its divisors is an integer number (9671659788).

Almost surely, 2^71843771051 is an apocalyptic number.

71843771051 is a deficient number, since it is larger than the sum of its proper divisors (5529507253).

71843771051 is a wasteful number, since it uses less digits than its factorization.

71843771051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218821.

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 71843771051 in words is "seventy-one billion, eight hundred forty-three million, seven hundred seventy-one thousand, fifty-one".