65287680640268 has 24 divisors (see below), whose sum is σ = 114308427532320. Its totient is φ = 32628132725760.

The previous prime is 65287680640249. The next prime is 65287680640339. The reversal of 65287680640268 is 86204608678256.

It is a super-2 number, since 2×65287680640268² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65287680640198 and 65287680640207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94148513 + ... + 94839431.

It is an arithmetic number, because the mean of its divisors is an integer number (4762851147180).

Almost surely, 2^{65287680640268} is an apocalyptic number.

It is an amenable number.

65287680640268 is a deficient number, since it is larger than the sum of its proper divisors (49020746892052).

65287680640268 is a wasteful number, since it uses less digits than its factorization.

65287680640268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702257 (or 702255 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 68.

The spelling of 65287680640268 in words is "sixty-five trillion, two hundred eighty-seven billion, six hundred eighty million, six hundred forty thousand, two hundred sixty-eight".