65854593882 has 144 divisors (see below), whose sum is σ = 181019494656. Its totient is φ = 16935336000.

The previous prime is 65854593881. The next prime is 65854593907. The reversal of 65854593882 is 28839545856.

65854593882 is a `hidden beast` number, since 6 + 5 + 8 + 545 + 9 + 3 + 8 + 82 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (65854593881) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1518463 + ... + 1561229.

It is an arithmetic number, because the mean of its divisors is an integer number (1257079824).

Almost surely, 2^65854593882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65854593882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90509747328).

65854593882 is an abundant number, since it is smaller than the sum of its proper divisors (115164900774).

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

65854593882 is a wasteful number, since it uses less digits than its factorization.

65854593882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42905 (or 42891 counting only the distinct ones).

The product of its digits is 82944000, while the sum is 63.

The spelling of 65854593882 in words is "sixty-five billion, eight hundred fifty-four million, five hundred ninety-three thousand, eight hundred eighty-two".