65724278344 has 16 divisors (see below), whose sum is σ = 124384734000. Its totient is φ = 32555015952.

The previous prime is 65724278297. The next prime is 65724278353. The reversal of 65724278344 is 44387242756.

It is a junction number, because it is equal to n+sod(n) for n = 65724278291 and 65724278300.

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, 38389494 + ... + 38391205.

It is an arithmetic number, because the mean of its divisors is an integer number (7774045875).

Almost surely, 2^65724278344 is an apocalyptic number.

It is an amenable number.

65724278344 is a deficient number, since it is larger than the sum of its proper divisors (58660455656).

65724278344 is a wasteful number, since it uses less digits than its factorization.

65724278344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76780812 (or 76780808 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 52.

The spelling of 65724278344 in words is "sixty-five billion, seven hundred twenty-four million, two hundred seventy-eight thousand, three hundred forty-four".