65871084312 has 96 divisors (see below), whose sum is σ = 199879177680. Its totient is φ = 19421441280.

The previous prime is 65871084281. The next prime is 65871084313. The reversal of 65871084312 is 21348017856.

65871084312 is a `hidden beast` number, since 6 + 587 + 10 + 8 + 43 + 12 = 666.

It is a super-2 number, since 2×65871084312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65871084313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1094623 + ... + 1153230.

Almost surely, 2^65871084312 is an apocalyptic number.

It is an amenable number.

65871084312 is an abundant number, since it is smaller than the sum of its proper divisors (134008093368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65871084312 is a wasteful number, since it uses less digits than its factorization.

65871084312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247913 (or 2247906 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 65871084312 in words is "sixty-five billion, eight hundred seventy-one million, eighty-four thousand, three hundred twelve".