65826481812 has 72 divisors (see below), whose sum is σ = 192415892256. Its totient is φ = 17360828352.

The previous prime is 65826481769. The next prime is 65826481829. The reversal of 65826481812 is 21818462856.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4298118 + ... + 4313405.

It is an arithmetic number, because the mean of its divisors is an integer number (2672442948).

Almost surely, 2^65826481812 is an apocalyptic number.

It is an amenable number.

65826481812 is an abundant number, since it is smaller than the sum of its proper divisors (126589410444).

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

65826481812 is a wasteful number, since it uses less digits than its factorization.

65826481812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611557 (or 8611548 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 51.

The spelling of 65826481812 in words is "sixty-five billion, eight hundred twenty-six million, four hundred eighty-one thousand, eight hundred twelve".