65383977281725 has 48 divisors (see below), whose sum is σ = 86308727316480. Its totient is φ = 49061015640000.

The previous prime is 65383977281723. The next prime is 65383977281731. The reversal of 65383977281725 is 52718277938356.

It is a happy number.

It is not a de Polignac number, because 65383977281725 - 2¹ = 65383977281723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65383977281723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6823521 + ... + 13316470.

It is an arithmetic number, because the mean of its divisors is an integer number (1798098485760).

Almost surely, 2^{65383977281725} is an apocalyptic number.

It is an amenable number.

65383977281725 is a deficient number, since it is larger than the sum of its proper divisors (20924750034755).

65383977281725 is a wasteful number, since it uses less digits than its factorization.

65383977281725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20140162 (or 20140157 counting only the distinct ones).

The product of its digits is 1066867200, while the sum is 73.

The spelling of 65383977281725 in words is "sixty-five trillion, three hundred eighty-three billion, nine hundred seventy-seven million, two hundred eighty-one thousand, seven hundred twenty-five".