65276068821 has 32 divisors (see below), whose sum is σ = 88747591680. Its totient is φ = 42668404800.

The previous prime is 65276068807. The next prime is 65276068831. The reversal of 65276068821 is 12886067256.

It is a happy number.

It is not a de Polignac number, because 65276068821 - 2¹¹ = 65276066773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65276068831) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 49488400 + ... + 49489718.

It is an arithmetic number, because the mean of its divisors is an integer number (2773362240).

Almost surely, 2^65276068821 is an apocalyptic number.

It is an amenable number.

65276068821 is a deficient number, since it is larger than the sum of its proper divisors (23471522859).

65276068821 is a wasteful number, since it uses less digits than its factorization.

65276068821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 65276068821 in words is "sixty-five billion, two hundred seventy-six million, sixty-eight thousand, eight hundred twenty-one".