65287984538475 has 120 divisors (see below), whose sum is σ = 125595381172800. Its totient is φ = 33502862796480.

The previous prime is 65287984538443. The next prime is 65287984538479. The reversal of 65287984538475 is 57483548978256.

65287984538475 is a `hidden beast` number, since 6 + 5 + 2 + 8 + 7 + 9 + 8 + 4 + 538 + 4 + 75 = 666.

It is not a de Polignac number, because 65287984538475 - 2⁵ = 65287984538443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 65287984538394 and 65287984538403.

It is not an unprimeable number, because it can be changed into a prime (65287984538479) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 238576 + ... + 11429474.

It is an arithmetic number, because the mean of its divisors is an integer number (1046628176440).

Almost surely, 2^{65287984538475} is an apocalyptic number.

65287984538475 is a deficient number, since it is larger than the sum of its proper divisors (60307396634325).

65287984538475 is a wasteful number, since it uses less digits than its factorization.

65287984538475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11191031 (or 11191017 counting only the distinct ones).

The product of its digits is 16257024000, while the sum is 81.

The spelling of 65287984538475 in words is "sixty-five trillion, two hundred eighty-seven billion, nine hundred eighty-four million, five hundred thirty-eight thousand, four hundred seventy-five".