65872773510885 has 128 divisors (see below), whose sum is σ = 128233860894720. Its totient is φ = 31818306643200.

The previous prime is 65872773510883. The next prime is 65872773510917. The reversal of 65872773510885 is 58801537727856.

It is a happy number.

65872773510885 is a `hidden beast` number, since 6 + 5 + 8 + 7 + 27 + 7 + 3 + 510 + 8 + 85 = 666.

It is not a de Polignac number, because 65872773510885 - 2¹ = 65872773510883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65872773510883) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 674828752 + ... + 674926358.

It is an arithmetic number, because the mean of its divisors is an integer number (1001827038240).

Almost surely, 2^{65872773510885} is an apocalyptic number.

It is an amenable number.

65872773510885 is a deficient number, since it is larger than the sum of its proper divisors (62361087383835).

65872773510885 is a wasteful number, since it uses less digits than its factorization.

65872773510885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99336 (or 99330 counting only the distinct ones).

The product of its (nonzero) digits is 790272000, while the sum is 72.

The spelling of 65872773510885 in words is "sixty-five trillion, eight hundred seventy-two billion, seven hundred seventy-three million, five hundred ten thousand, eight hundred eighty-five".