65243123444 has 12 divisors (see below), whose sum is σ = 114183720000. Its totient is φ = 32619203448.

The previous prime is 65243123431. The next prime is 65243123453. The reversal of 65243123444 is 44432134256.

It is a super-2 number, since 2×65243123444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65243123398 and 65243123407.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 526574 + ... + 638565.

It is an arithmetic number, because the mean of its divisors is an integer number (9515310000).

Almost surely, 2^65243123444 is an apocalyptic number.

It is an amenable number.

65243123444 is a deficient number, since it is larger than the sum of its proper divisors (48940596556).

65243123444 is a wasteful number, since it uses less digits than its factorization.

65243123444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179142 (or 1179140 counting only the distinct ones).

The product of its digits is 276480, while the sum is 38.

The spelling of 65243123444 in words is "sixty-five billion, two hundred forty-three million, one hundred twenty-three thousand, four hundred forty-four".